Subtract 81/63 from 6/15
1st number: 6/15, 2nd number: 1 18/63
6/15 - 81/63 is -31/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
6/15 = 6 × 21/15 × 21 = 126/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
81/63 = 81 × 5/63 × 5 = 405/315 - Subtract the two like fractions:
126/315 - 405/315 = 126 - 405/315 = -279/315 - After reducing the fraction, the answer is -31/35
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