Subtract 20/48 from 3/63
3/63 - 20/48 is -31/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 48 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
3/63 = 3 × 16/63 × 16 = 48/1008 - Likewise, for the 2nd fraction, since 48 × 21 = 1008,
20/48 = 20 × 21/48 × 21 = 420/1008 - Subtract the two like fractions:
48/1008 - 420/1008 = 48 - 420/1008 = -372/1008 - After reducing the fraction, the answer is -31/84
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