math help

What is 78/92 + 11/12?

What is 78/92 + 11/12?

Here's how we add

78
92
+
11
12

Step 1

We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator.

Now we multiply 78 by 12, and get 936, then we multiply 92 by 12 and get 1104.

78/92 times 12

Now for the second term. You multiply 11 by 92, and get 1012, then multiply 92 by 12 and get 1104.

11/12 times 92

This gives us a new problem that looks like so:

936
1104
+
1012
1104

Step 2

Since our denominators match, we can add the numerators.

936 + 1012 = 1948

That gives us an answer of

1948
1104

Step 3

Can this fraction be reduced?

First, we attempt to divide it by 2...

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

1948
1104
÷ 2 =
974
552

Now, try the same number again.

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

974
552
÷ 2 =
487
276

Now, try the same number again.

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...

No good. 277 is larger than 276. So we're done reducing.

Congratulations! Here's your final answer to 78/92 + 11/12

78
92
+
11
12
=
487
276
© 2014 Randy Tayler

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