Subtract 63/8 from 42/7
1st number: 6 0/7, 2nd number: 7 7/8
42/7 - 63/8 is -15/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
42/7 = 42 × 8/7 × 8 = 336/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
63/8 = 63 × 7/8 × 7 = 441/56 - Subtract the two like fractions:
336/56 - 441/56 = 336 - 441/56 = -105/56 - After reducing the fraction, the answer is -15/8
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