Subtract 81/40 from 28/14
1st number: 2 0/14, 2nd number: 2 1/40
28/14 - 81/40 is -1/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
28/14 = 28 × 20/14 × 20 = 560/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Subtract the two like fractions:
560/280 - 567/280 = 560 - 567/280 = -7/280 - After reducing the fraction, the answer is -1/40
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