Subtract 6/7 from 42/56
42/56 - 6/7 is -3/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
42/56 = 42 × 1/56 × 1 = 42/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
6/7 = 6 × 8/7 × 8 = 48/56 - Subtract the two like fractions:
42/56 - 48/56 = 42 - 48/56 = -6/56 - After reducing the fraction, the answer is -3/28
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