Answer:

C.3/12

Step-by-step explanation:

Hope it helps

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The Answer: 3/12

Lowest term: 1/4

Step by step:

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 6, and get 54.

Then we multiply 3 by 12, and get 36.

Next we give both terms new denominators -- 12 × 6 = 72.

So now our fractions look like this:

54/72− 36/72

Step 2

Since our denominators match, we can subtract the numerators.

54 − 36 = 18

So the answer is:

18/72

Step 3

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

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

18/72÷ 2 = 9/36

Let's try dividing by 2 again...

Nope! So now we try the next greatest prime number, 3...

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

the denominator evenly divisible by 3? Yes! So we reduce it:

9/36÷ 3 = the answer: 3/12

Let's try dividing by 3 again...

No good. 3 is larger than 1. So we're done reducing.

There you have it! The final answer is:

9/12− 3/6=Lowest term: 1/4