math help

What is 60/48 + 9/11?

What is 60/48 + 9/11?

This is how you add

60
48
+
9
11

Step 1

We can't add two fractions with different denominators (the bottom number). So you need to get a common denominator - both bottom numbers need to match. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 60 by 11, and get 660, then we multiply 48 by 11 and get 528.

60/48 times 11

Do the same for the second term. We multiply 9 by 48, and get 432, then multiply 48 by 11 and get 528.

9/11 times 48

So now our fractions look like this:

660
528
+
432
528

Step 2

Since our denominators match, we can add the numerators.

660 + 432 = 1092

So the answer is:

1092
528

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

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

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

1092
528
÷ 2 =
546
264

So far so good... let's try to divide by that number again.

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

546
264
÷ 2 =
273
132

So far so good... let's try to divide by that number again.

No good. So next you try the next prime number, which is 3...

Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:

273
132
÷ 3 =
91
44

So far so good... let's try to divide by that number again.

No good. So next you try the next prime number, which is 5...

No good. So next you try the next prime number, which is 7...

No good. So next you try the next prime number, which is 11...

No good. So next you try the next prime number, which is 13...

No good. So next you try the next prime number, which is 17...

No good. So next you try the next prime number, which is 19...

No good. So next you try the next prime number, which is 23...

No good. So next you try the next prime number, which is 29...

No good. So next you try the next prime number, which is 31...

No good. So next you try the next prime number, which is 37...

No good. So next you try the next prime number, which is 41...

No good. So next you try the next prime number, which is 43...

No good. So next you try the next prime number, which is 47...

No good. 47 is larger than 44. So we're done reducing.

And we're done! Here's the final answer to 60/48 + 9/11

60
48
+
9
11
=
91
44
© 2014 Randy Tayler