Subtract 40/63 from 20/48
20/48 - 40/63 is -55/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 63 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 48 × 21 = 1008,
20/48 = 20 × 21/48 × 21 = 420/1008 - Likewise, for the 2nd fraction, since 63 × 16 = 1008,
40/63 = 40 × 16/63 × 16 = 640/1008 - Subtract the two like fractions:
420/1008 - 640/1008 = 420 - 640/1008 = -220/1008 - After reducing the fraction, the answer is -55/252
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