Subtract 12/84 from 7/63
7/63 - 12/84 is -2/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
7/63 = 7 × 4/63 × 4 = 28/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
12/84 = 12 × 3/84 × 3 = 36/252 - Subtract the two like fractions:
28/252 - 36/252 = 28 - 36/252 = -8/252 - After reducing the fraction, the answer is -2/63
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