Subtract 72/63 from 7/15
1st number: 7/15, 2nd number: 1 9/63
7/15 - 72/63 is -71/105.
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,
7/15 = 7 × 21/15 × 21 = 147/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
72/63 = 72 × 5/63 × 5 = 360/315 - Subtract the two like fractions:
147/315 - 360/315 = 147 - 360/315 = -213/315 - After reducing the fraction, the answer is -71/105
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