math help

What is 80/2 + 6/8?

What is 80/2 + 6/8?

Here's how you add

80
2
+
6
8

Step 1

Now we need to make our denominators match.

Since 2 is evenly divided by 8, we can multiply just one term to get a common denominator.

Multiply 80 by 4, and get 320, then we multiply 2 by 4 and get 8.

80/2 times 4

So now our fractions look like this:

320
8
+
6
8

Step 2

Since our denominators match, we can add the numerators.

320 + 6 = 326

So the answer is:

326
8

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

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

326
8
÷ 2 =
163
4

Let's try dividing by that again...

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 + 6/8

80
2
+
6
8
=
163
4
© 2014 Randy Tayler