Subtract 27/4 from 42/63
1st number: 42/63, 2nd number: 6 3/4
42/63 - 27/4 is -73/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
42/63 = 42 × 4/63 × 4 = 168/252 - Likewise, for the 2nd fraction, since 4 × 63 = 252,
27/4 = 27 × 63/4 × 63 = 1701/252 - Subtract the two like fractions:
168/252 - 1701/252 = 168 - 1701/252 = -1533/252 - After reducing the fraction, the answer is -73/12
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