Subtract 8/7 from 15/63
1st number: 15/63, 2nd number: 1 1/7
15/63 - 8/7 is -19/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
15/63 = 15 × 1/63 × 1 = 15/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
8/7 = 8 × 9/7 × 9 = 72/63 - Subtract the two like fractions:
15/63 - 72/63 = 15 - 72/63 = -57/63 - After reducing the fraction, the answer is -19/21
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