**Rule 19:**- To subtract, the denominators must be equal. You
essentially following the same steps as in addition.
**1.**- Build each fraction so that both denominators are equal.
**2.**- Combine the numerators according to the operation of subtraction or additions.
**3.**- The denominators will be the denominator of the built-up fractions.
**4.**- Reduce the answer.

**Problem 1:**- Calculate and reduce your answer.
**Answer:**- The answer is .
**Solution:**- The denominators are the same, so you can skip step 1. The denominator of the answer will be 24.
Combine the numerators for the numerator in the answer. 13
- 9 = 4.

The answer is .Reduce the fraction.

. **Check:**- You can check the answer with your calculator.
Calculate 13 divided by 24, calculate 9 divided by 24, and subtract the second answer from the first. Now divide 1 by 6. Both answers should be the same. If you are correct, the answers are the same (equivalent) and you have successfully combined two fractions with the operation of subtraction.

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