Subtract 81/63 from 3/4
1st number: 3/4, 2nd number: 1 18/63
3/4 - 81/63 is -15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
3/4 = 3 × 63/4 × 63 = 189/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
81/63 = 81 × 4/63 × 4 = 324/252 - Subtract the two like fractions:
189/252 - 324/252 = 189 - 324/252 = -135/252 - After reducing the fraction, the answer is -15/28
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