Subtract 9/56 from 5/42
5/42 - 9/56 is -1/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
5/42 = 5 × 4/42 × 4 = 20/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
9/56 = 9 × 3/56 × 3 = 27/168 - Subtract the two like fractions:
20/168 - 27/168 = 20 - 27/168 = -7/168 - After reducing the fraction, the answer is -1/24
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