math help

What is 64/4 + 7/8?

What is 64/4 + 7/8?

This is how to add

64
4
+
7
8

Step 1

We have to make sure the denominators are equal.

8 goes into 4 evenly, so we only need to multiply one term to get a common denominator.

Multiply 64 by 2, and get 128, then we multiply 4 by 2 and get 8.

64/4 times 2

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

128
8
+
7
8

Step 2

Since our denominators match, we can add the numerators.

128 + 7 = 135

Answer:

135
8

Step 3

Now, do we need to simplify this fraction?

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

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

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. 11 is larger than 8. So we're done reducing.

And we're done! Here's the final answer to 64/4 + 7/8

64
4
+
7
8
=
135
8
© 2014 Randy Tayler