Subtract 16/28 from 16/42
16/42 - 16/28 is -4/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
16/42 = 16 × 2/42 × 2 = 32/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
16/28 = 16 × 3/28 × 3 = 48/84 - Subtract the two like fractions:
32/84 - 48/84 = 32 - 48/84 = -16/84 - After reducing the fraction, the answer is -4/21
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