math help

What is 91/1 + 11/12?

What is 91/1 + 11/12?

This is how we add

91
1
+
11
12

Step 1

Our denominators (bottom numbers) don't match, so we can't add yet.

12 goes into 1 evenly, so we only need to multiply one term to get a common denominator.

Multiply 91 by 12, and get 1092, then we multiply 1 by 12 and get 12.

91/1 times 12

We now have a new problem, that looks like this:

1092
12
+
11
12

Step 2

Since our denominators match, we can add the numerators.

1092 + 11 = 1103

Answer:

1103
12

Step 3

Now, do we need to simplify this fraction?

First, we attempt to divide 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...

No good. 13 is larger than 12. So we're done reducing.

Congratulations! Here's your final answer to 91/1 + 11/12

91
1
+
11
12
=
1103
12
© 2014 Randy Tayler

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