Subtract 81/80 from 7/14
1st number: 7/14, 2nd number: 1 1/80
7/14 - 81/80 is -41/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
7/14 = 7 × 40/14 × 40 = 280/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
81/80 = 81 × 7/80 × 7 = 567/560 - Subtract the two like fractions:
280/560 - 567/560 = 280 - 567/560 = -287/560 - After reducing the fraction, the answer is -41/80
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