 # What is 6/9 + 4/6? 6 9
+
 4 6

## Step 1

We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator.

Now we multiply 6 by 6, and get 36, then we multiply 9 by 6 and get 54. Now for the second term. You multiply 4 by 9, and get 36, then multiply 9 by 6 and get 54. This gives us a new problem that looks like so:

 36 54
+
 36 54

## Step 2

Since our denominators match, we can add the numerators.

36 + 36 = 72

That gives us an answer of

 72 54

## 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:

 72 54
÷ 2 =
 36 27

Now, try the same number again.

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

Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:

 36 27
÷ 3 =
 12 9

Now, try the same number again.

Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:

 12 9
÷ 3 =
 4 3

Now, try the same number again.

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

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