Subtract 3/56 from 2/42
2/42 - 3/56 is -1/168.
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,
2/42 = 2 × 4/42 × 4 = 8/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
3/56 = 3 × 3/56 × 3 = 9/168 - Subtract the two like fractions:
8/168 - 9/168 = 8 - 9/168 = -1/168
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