Subtract 21/15 from 1/63
1st number: 1/63, 2nd number: 1 6/15
1/63 - 21/15 is -436/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
1/63 = 1 × 5/63 × 5 = 5/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
21/15 = 21 × 21/15 × 21 = 441/315 - Subtract the two like fractions:
5/315 - 441/315 = 5 - 441/315 = -436/315
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