math help

What is 91/1 + 5/12?

What is 91/1 + 5/12?

Here's how we add

91
1
+
5
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

This gives us a new problem that looks like so:

1092
12
+
5
12

Step 2

Since our denominators match, we can add the numerators.

1092 + 5 = 1097

So what's the answer so far?

1097
12

Step 3

Can this fraction be reduced?

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 + 5/12

91
1
+
5
12
=
1097
12
© 2014 Randy Tayler