Subtract 21/28 from 7/16
7/16 - 21/28 is -5/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 28 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
7/16 = 7 × 7/16 × 7 = 49/112 - Likewise, for the 2nd fraction, since 28 × 4 = 112,
21/28 = 21 × 4/28 × 4 = 84/112 - Subtract the two like fractions:
49/112 - 84/112 = 49 - 84/112 = -35/112 - After reducing the fraction, the answer is -5/16
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