math help

What is 9/100 + 10/11?

What is 9/100 + 10/11?

Here's how we add

9
100
+
10
11

Step 1

Of course, you can't add two fractions if the denominators (bottom numbers) don't match. To get a common denominator, multiply the denominators together. Then we fix the numerators by multiplying each one by their other term's denominator.

Now you multiply 9 by 11, and get 99, then we multiply 100 by 11 and get 1100.

9/100 times 11

Do the same for the second term. We multiply 10 by 100, and get 1000, then multiply 100 by 11 and get 1100.

10/11 times 100

The problem now has new fractions to add:

99
1100
+
1000
1100

Step 2

Since our denominators match, we can add the numerators.

99 + 1000 = 1099

This yields the answer

1099
1100

Step 3

The last step is to reduce the fraction if we can.

To find out, we try dividing it by 2...

Nope. Try the next prime number, 3...

Nope. Try the next prime number, 5...

Nope. Try the next prime number, 7...

Nope. Try the next prime number, 11...

Nope. Try the next prime number, 13...

Nope. Try the next prime number, 17...

Nope. Try the next prime number, 19...

Nope. Try the next prime number, 23...

Nope. Try the next prime number, 29...

Nope. Try the next prime number, 31...

Nope. Try the next prime number, 37...

Nope. Try the next prime number, 41...

Nope. Try the next prime number, 43...

Nope. Try the next prime number, 47...

Nope. Try the next prime number, 53...

Nope. Try the next prime number, 59...

Nope. Try the next prime number, 61...

Nope. Try the next prime number, 67...

Nope. Try the next prime number, 71...

Nope. Try the next prime number, 73...

Nope. Try the next prime number, 79...

Nope. Try the next prime number, 83...

Nope. Try the next prime number, 89...

Nope. Try the next prime number, 97...

Nope. Try the next prime number, 101...

Nope. Try the next prime number, 103...

Nope. Try the next prime number, 107...

Nope. Try the next prime number, 109...

Nope. Try the next prime number, 113...

Nope. Try the next prime number, 127...

Nope. Try the next prime number, 131...

Nope. Try the next prime number, 137...

Nope. Try the next prime number, 139...

Nope. Try the next prime number, 149...

Nope. Try the next prime number, 151...

Nope. Try the next prime number, 157...

Nope. Try the next prime number, 163...

Nope. Try the next prime number, 167...

Nope. Try the next prime number, 173...

Nope. Try the next prime number, 179...

Nope. Try the next prime number, 181...

Nope. Try the next prime number, 191...

Nope. Try the next prime number, 193...

Nope. Try the next prime number, 197...

Nope. Try the next prime number, 199...

Nope. Try the next prime number, 211...

Nope. Try the next prime number, 223...

Nope. Try the next prime number, 227...

Nope. Try the next prime number, 229...

Nope. Try the next prime number, 233...

Nope. Try the next prime number, 239...

Nope. Try the next prime number, 241...

Nope. Try the next prime number, 251...

Nope. Try the next prime number, 257...

Nope. Try the next prime number, 263...

Nope. Try the next prime number, 269...

Nope. Try the next prime number, 271...

Nope. Try the next prime number, 277...

Nope. Try the next prime number, 281...

Nope. Try the next prime number, 283...

Nope. Try the next prime number, 293...

Nope. Try the next prime number, 307...

Nope. Try the next prime number, 311...

Nope. Try the next prime number, 313...

Nope. Try the next prime number, 317...

Nope. Try the next prime number, 331...

Nope. Try the next prime number, 337...

Nope. Try the next prime number, 347...

Nope. Try the next prime number, 349...

Nope. Try the next prime number, 353...

Nope. Try the next prime number, 359...

Nope. Try the next prime number, 367...

Nope. Try the next prime number, 373...

Nope. Try the next prime number, 379...

Nope. Try the next prime number, 383...

Nope. Try the next prime number, 389...

Nope. Try the next prime number, 397...

Nope. Try the next prime number, 401...

Nope. Try the next prime number, 409...

Nope. Try the next prime number, 419...

Nope. Try the next prime number, 421...

Nope. Try the next prime number, 431...

Nope. Try the next prime number, 433...

Nope. Try the next prime number, 439...

Nope. Try the next prime number, 443...

Nope. Try the next prime number, 449...

Nope. Try the next prime number, 457...

Nope. Try the next prime number, 461...

Nope. Try the next prime number, 463...

Nope. Try the next prime number, 467...

Nope. Try the next prime number, 479...

Nope. Try the next prime number, 487...

Nope. Try the next prime number, 491...

Nope. Try the next prime number, 499...

Nope. Try the next prime number, 503...

Nope. Try the next prime number, 509...

Nope. Try the next prime number, 521...

Nope. Try the next prime number, 523...

Nope. Try the next prime number, 541...

Nope. Try the next prime number, 547...

Nope. Try the next prime number, 557...

Nope. Try the next prime number, 563...

Nope. Try the next prime number, 569...

Nope. Try the next prime number, 571...

Nope. Try the next prime number, 577...

Nope. Try the next prime number, 587...

Nope. Try the next prime number, 593...

Nope. Try the next prime number, 599...

Nope. Try the next prime number, 601...

Nope. Try the next prime number, 607...

Nope. Try the next prime number, 613...

Nope. Try the next prime number, 617...

Nope. Try the next prime number, 619...

Nope. Try the next prime number, 631...

Nope. Try the next prime number, 641...

Nope. Try the next prime number, 643...

Nope. Try the next prime number, 647...

Nope. Try the next prime number, 653...

Nope. Try the next prime number, 659...

Nope. Try the next prime number, 661...

Nope. Try the next prime number, 673...

Nope. Try the next prime number, 677...

Nope. Try the next prime number, 683...

Nope. Try the next prime number, 691...

Nope. Try the next prime number, 701...

Nope. Try the next prime number, 709...

Nope. Try the next prime number, 719...

Nope. Try the next prime number, 727...

Nope. Try the next prime number, 733...

Nope. Try the next prime number, 739...

Nope. Try the next prime number, 743...

Nope. Try the next prime number, 751...

Nope. Try the next prime number, 757...

Nope. Try the next prime number, 761...

Nope. Try the next prime number, 769...

Nope. Try the next prime number, 773...

Nope. Try the next prime number, 787...

Nope. Try the next prime number, 797...

Nope. Try the next prime number, 809...

Nope. Try the next prime number, 811...

Nope. Try the next prime number, 821...

Nope. Try the next prime number, 823...

Nope. Try the next prime number, 827...

Nope. Try the next prime number, 829...

Nope. Try the next prime number, 839...

Nope. Try the next prime number, 853...

Nope. Try the next prime number, 857...

Nope. Try the next prime number, 859...

Nope. Try the next prime number, 863...

Nope. Try the next prime number, 877...

Nope. Try the next prime number, 881...

Nope. Try the next prime number, 883...

Nope. Try the next prime number, 887...

Nope. Try the next prime number, 907...

Nope. Try the next prime number, 911...

Nope. Try the next prime number, 919...

Nope. Try the next prime number, 929...

Nope. Try the next prime number, 937...

Nope. Try the next prime number, 941...

Nope. Try the next prime number, 947...

Nope. Try the next prime number, 953...

Nope. Try the next prime number, 967...

Nope. Try the next prime number, 971...

Nope. Try the next prime number, 977...

Nope. Try the next prime number, 983...

Nope. Try the next prime number, 991...

Nope. Try the next prime number, 997...

Nope. Try the next prime number, 1009...

Nope. Try the next prime number, 1013...

Nope. Try the next prime number, 1019...

Nope. Try the next prime number, 1021...

Nope. Try the next prime number, 1031...

Nope. Try the next prime number, 1033...

Nope. Try the next prime number, 1039...

Nope. Try the next prime number, 1049...

Nope. Try the next prime number, 1051...

Nope. Try the next prime number, 1061...

Nope. Try the next prime number, 1063...

Nope. Try the next prime number, 1069...

Nope. Try the next prime number, 1087...

Nope. Try the next prime number, 1091...

Nope. Try the next prime number, 1093...

Nope. Try the next prime number, 1097...

Nope. Try the next prime number, 1103...

No good. 1103 is larger than 1099. So we're done reducing.

Congratulations! Here's your final answer to 9/100 + 10/11

9
100
+
10
11
=
1099
1100
© 2014 Randy Tayler

10/11 + 1/2
10/11 - 1/2
10/11 + 1/3
10/11 - 1/3
10/11 + 2/3
10/11 - 2/3
10/11 + 1/4
10/11 - 1/4
10/11 + 2/4
10/11 - 2/4
10/11 + 3/4
10/11 - 3/4
10/11 + 1/5
10/11 - 1/5
10/11 + 2/5
10/11 - 2/5
10/11 + 3/5
10/11 - 3/5
10/11 + 4/5
10/11 - 4/5
10/11 + 1/6
10/11 - 1/6
10/11 + 2/6
10/11 - 2/6
10/11 + 3/6
10/11 - 3/6
10/11 + 4/6
10/11 - 4/6
10/11 + 5/6
10/11 - 5/6
10/11 + 1/7
10/11 - 1/7
10/11 + 2/7
10/11 - 2/7
10/11 + 3/7
10/11 - 3/7
10/11 + 4/7
10/11 - 4/7
10/11 + 5/7
10/11 - 5/7
10/11 + 6/7
10/11 - 6/7
10/11 + 1/8
10/11 - 1/8
10/11 + 2/8
10/11 - 2/8
10/11 + 3/8
10/11 - 3/8
10/11 + 4/8
10/11 - 4/8
10/11 + 5/8
10/11 - 5/8
10/11 + 6/8
10/11 - 6/8
10/11 + 7/8
10/11 - 7/8
10/11 + 1/9
10/11 - 1/9
10/11 + 2/9
10/11 - 2/9
10/11 + 3/9
10/11 - 3/9
10/11 + 4/9
10/11 - 4/9
10/11 + 5/9
10/11 - 5/9
10/11 + 6/9
10/11 - 6/9
10/11 + 7/9
10/11 - 7/9
10/11 + 8/9
10/11 - 8/9
10/11 + 1/10
10/11 - 1/10
10/11 + 2/10
10/11 - 2/10
10/11 + 3/10
10/11 - 3/10
10/11 + 4/10
10/11 - 4/10
10/11 + 5/10
10/11 - 5/10
10/11 + 6/10
10/11 - 6/10
10/11 + 7/10
10/11 - 7/10
10/11 + 8/10
10/11 - 8/10
10/11 + 9/10
10/11 - 9/10
10/11 + 1/11
10/11 - 1/11
10/11 + 2/11
10/11 - 2/11
10/11 + 3/11
10/11 - 3/11
10/11 + 4/11
10/11 - 4/11
10/11 + 5/11
10/11 - 5/11
10/11 + 6/11
10/11 - 6/11
10/11 + 7/11
10/11 - 7/11
10/11 + 8/11
10/11 - 8/11
10/11 + 9/11
10/11 - 9/11
10/11 + 10/11
10/11 - 10/11
10/11 + 1/12
10/11 - 1/12
10/11 + 2/12
10/11 - 2/12
10/11 + 3/12
10/11 - 3/12
10/11 + 4/12
10/11 - 4/12
10/11 + 5/12
10/11 - 5/12
10/11 + 6/12
10/11 - 6/12
10/11 + 7/12
10/11 - 7/12
10/11 + 8/12
10/11 - 8/12
10/11 + 9/12
10/11 - 9/12
10/11 + 10/12
10/11 - 10/12
10/11 + 11/12
10/11 - 11/12