Subtract 81/28 from 5/40
1st number: 5/40, 2nd number: 2 25/28
5/40 - 81/28 is -155/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
5/40 = 5 × 7/40 × 7 = 35/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
81/28 = 81 × 10/28 × 10 = 810/280 - Subtract the two like fractions:
35/280 - 810/280 = 35 - 810/280 = -775/280 - After reducing the fraction, the answer is -155/56
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