Subtract 81/28 from 15/63
1st number: 15/63, 2nd number: 2 25/28
15/63 - 81/28 is -223/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
15/63 = 15 × 4/63 × 4 = 60/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
81/28 = 81 × 9/28 × 9 = 729/252 - Subtract the two like fractions:
60/252 - 729/252 = 60 - 729/252 = -669/252 - After reducing the fraction, the answer is -223/84
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