Subtract 49/60 from 42/63
42/63 - 49/60 is -3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
42/63 = 42 × 20/63 × 20 = 840/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
49/60 = 49 × 21/60 × 21 = 1029/1260 - Subtract the two like fractions:
840/1260 - 1029/1260 = 840 - 1029/1260 = -189/1260 - After reducing the fraction, the answer is -3/20
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