Subtract 20/96 from 7/63
7/63 - 20/96 is -7/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 96 is 2016
Next, find the equivalent fraction of both fractional numbers with denominator 2016 - For the 1st fraction, since 63 × 32 = 2016,
7/63 = 7 × 32/63 × 32 = 224/2016 - Likewise, for the 2nd fraction, since 96 × 21 = 2016,
20/96 = 20 × 21/96 × 21 = 420/2016 - Subtract the two like fractions:
224/2016 - 420/2016 = 224 - 420/2016 = -196/2016 - After reducing the fraction, the answer is -7/72
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