Subtract 45/63 from 5/15
5/15 - 45/63 is -8/21.
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,
5/15 = 5 × 21/15 × 21 = 105/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
45/63 = 45 × 5/63 × 5 = 225/315 - Subtract the two like fractions:
105/315 - 225/315 = 105 - 225/315 = -120/315 - After reducing the fraction, the answer is -8/21
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