math help

What is 80/2 + 1/4?

What is 80/2 + 1/4?

This is how we add

80
2
+
1
4

Step 1

Now we need to make our denominators match.

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

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

160
4
+
1
4

Step 2

Since our denominators match, we can add the numerators.

160 + 1 = 161

That gives us the sum, which is

161
4

Step 3

Now, do we need to simplify this fraction?

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...

No good. 5 is larger than 4. So we're done reducing.

There you have it! Here's the final answer to 80/2 + 1/4

80
2
+
1
4
=
161
4
© 2014 Randy Tayler