Subtract 8/15 from 8/63
8/63 - 8/15 is -128/315.
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,
8/63 = 8 × 5/63 × 5 = 40/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
8/15 = 8 × 21/15 × 21 = 168/315 - Subtract the two like fractions:
40/315 - 168/315 = 40 - 168/315 = -128/315
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