math help

What is 91/1 + 6/7?

What is 91/1 + 6/7?

Here's how to add

91
1
+
6
7

Step 1

Now we need to make our denominators match.

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

Multiply 91 by 7, and get 637, then we multiply 1 by 7 and get 7.

91/1 times 7

This gives us a new problem that looks like so:

637
7
+
6
7

Step 2

Since our denominators match, we can add the numerators.

637 + 6 = 643

That gives us an answer of

643
7

Step 3

Can this fraction be reduced?

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

Nope! So now we try the next greatest prime number, 3...

Nope! So now we try the next greatest prime number, 5...

Nope! So now we try the next greatest prime number, 7...

Nope! So now we try the next greatest prime number, 11...

No good. 11 is larger than 7. So we're done reducing.

There you have it! Here's the final answer to 91/1 + 6/7

91
1
+
6
7
=
643
7
© 2014 Randy Tayler