math help

What is 80/2 + 3/4?

What is 80/2 + 3/4?

Here's how you add

80
2
+
3
4

Step 1

We have to make sure the denominators are equal.

4 goes into 2 evenly, so we only need to multiply one term to get a common denominator.

Multiply 80 by 2, and get 160, then we multiply 2 by 2 and get 4.

80/2 times 2

This gives us a new problem that looks like so:

160
4
+
3
4

Step 2

Since our denominators match, we can add the numerators.

160 + 3 = 163

That gives us an answer of

163
4

Step 3

Can this fraction be reduced?

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. 5 is larger than 4. So we're done reducing.

And we're done! Here's the final answer to 80/2 + 3/4

80
2
+
3
4
=
163
4
© 2014 Randy Tayler