Subtract 5/42 from 4/63
4/63 - 5/42 is -1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
4/63 = 4 × 2/63 × 2 = 8/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
5/42 = 5 × 3/42 × 3 = 15/126 - Subtract the two like fractions:
8/126 - 15/126 = 8 - 15/126 = -7/126 - After reducing the fraction, the answer is -1/18
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