Subtract 27/42 from 2/63
2/63 - 27/42 is -11/18.
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,
2/63 = 2 × 2/63 × 2 = 4/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
27/42 = 27 × 3/42 × 3 = 81/126 - Subtract the two like fractions:
4/126 - 81/126 = 4 - 81/126 = -77/126 - After reducing the fraction, the answer is -11/18
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