math help

What is 64/16 + 1/8?

What is 64/16 + 1/8?

Here's how you add

64
16
+
1
8

Step 1

We have to make sure the denominators are equal.

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

Multiply 1 by 2, and get 2, then we multiply 8 by 2 and get 16.

1/8 times 2

This gives us a new problem that looks like so:

64
16
+
2
16

Step 2

Since our denominators match, we can add the numerators.

64 + 2 = 66

That gives us an answer of

66
16

Step 3

Can this fraction be reduced?

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

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

66
16
÷ 2 =
33
8

So far so good... let's try to divide by that number again.

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 64/16 + 1/8

64
16
+
1
8
=
33
8
© 2014 Randy Tayler