Subtract 63/56 from 81/80
1st number: 1 1/80, 2nd number: 1 7/56
81/80 - 63/56 is -9/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 56 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
81/80 = 81 × 7/80 × 7 = 567/560 - Likewise, for the 2nd fraction, since 56 × 10 = 560,
63/56 = 63 × 10/56 × 10 = 630/560 - Subtract the two like fractions:
567/560 - 630/560 = 567 - 630/560 = -63/560 - After reducing the fraction, the answer is -9/80
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