Subtract 20/35 from 15/63
15/63 - 20/35 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
15/63 = 15 × 5/63 × 5 = 75/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
20/35 = 20 × 9/35 × 9 = 180/315 - Subtract the two like fractions:
75/315 - 180/315 = 75 - 180/315 = -105/315 - After reducing the fraction, the answer is -1/3
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