1. subtracting fractions with like denominators

2. Subtracting fractions is possible only if the denominators of fractions are same. Consider subtracting the following fraction
Example 1:
Since the denominators are same , we just subtract the numerators of all fraction and put the difference over the common denominator 8
Step1:
Step2:

3. Example 2: -
Since the denominators are same , we just subtract the numerators of all fraction and put the sum over the common denominator 21
Step1: = - =
Step2:

4. Subtract the following
Try these
Subtract the following 1) 2) 3)