Subtract 8/63 from 21/15
1st number: 1 6/15, 2nd number: 8/63
21/15 - 8/63 is 401/315.
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,
21/15 = 21 × 21/15 × 21 = 441/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
8/63 = 8 × 5/63 × 5 = 40/315 - Subtract the two like fractions:
441/315 - 40/315 = 441 - 40/315 = 401/315 - In mixed form: 186/315
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