Subtract 12/42 from 6/63
6/63 - 12/42 is -4/21.
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,
6/63 = 6 × 2/63 × 2 = 12/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
12/42 = 12 × 3/42 × 3 = 36/126 - Subtract the two like fractions:
12/126 - 36/126 = 12 - 36/126 = -24/126 - After reducing the fraction, the answer is -4/21
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