math help

What is 64/4 + 3/8?

What is 64/4 + 3/8?

This is how you add

64
4
+
3
8

Step 1

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

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
+
3
8

Step 2

Since our denominators match, we can add the numerators.

128 + 3 = 131

That gives us the sum, which is

131
8

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...

No good. 11 is larger than 8. So we're done reducing.

Congratulations! Here's your final answer to 64/4 + 3/8

64
4
+
3
8
=
131
8
© 2014 Randy Tayler