Subtract 81/28 from 4/5
1st number: 4/5, 2nd number: 2 25/28
4/5 - 81/28 is -293/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
4/5 = 4 × 28/5 × 28 = 112/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
81/28 = 81 × 5/28 × 5 = 405/140 - Subtract the two like fractions:
112/140 - 405/140 = 112 - 405/140 = -293/140
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