math help

What is 9/12 - 6/8?

What is 9/12 - 6/8?

Here's how to subtract 6/8 from 9/12:

9
12
6
8

Step 1

We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 9 by 8, and get 72.

Then we multiply 6 by 12, and get 72.

Next we give both terms new denominators -- 12 × 8 = 96.

So now our fractions look like this:

72
96
72
96

Step 2

Since our denominators match, we can subtract the numerators.

72 − 72 = 0

So the answer is:

0
96
Zero divided by anything is just zero. So that's the final answer:
0