Subtract 63/42 from 27/60
1st number: 27/60, 2nd number: 1 21/42
27/60 - 63/42 is -21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
27/60 = 27 × 7/60 × 7 = 189/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
63/42 = 63 × 10/42 × 10 = 630/420 - Subtract the two like fractions:
189/420 - 630/420 = 189 - 630/420 = -441/420 - After reducing the fraction, the answer is -21/20
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