Subtract 90/63 from 1/15
1st number: 1/15, 2nd number: 1 27/63
1/15 - 90/63 is -143/105.
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,
1/15 = 1 × 21/15 × 21 = 21/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
90/63 = 90 × 5/63 × 5 = 450/315 - Subtract the two like fractions:
21/315 - 450/315 = 21 - 450/315 = -429/315 - After reducing the fraction, the answer is -143/105
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