Subtract 8/12 from 28/63
28/63 - 8/12 is -2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
28/63 = 28 × 4/63 × 4 = 112/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
8/12 = 8 × 21/12 × 21 = 168/252 - Subtract the two like fractions:
112/252 - 168/252 = 112 - 168/252 = -56/252 - After reducing the fraction, the answer is -2/9
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