math help

What is 4/10 + 4/10?

What is 4/10 + 4/10?

Here's how to add

4
10
+
4
10

Step 1

Since our denominators match, we can add the numerators.

4 + 4 = 8

Now we have an answer.

8
10

Step 2

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:

8
10
÷ 2 =
4
5

Now, try the same number again.

Nope. Try the next prime number, 3...

Nope. Try the next prime number, 5...

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

Congratulations! Here's your final answer to 4/10 + 4/10

4
10
+
4
10
=
4
5
© 2014 Randy Tayler