Subtract 81/40 from 1/25
1st number: 1/25, 2nd number: 2 1/40
1/25 - 81/40 is -397/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
1/25 = 1 × 8/25 × 8 = 8/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
81/40 = 81 × 5/40 × 5 = 405/200 - Subtract the two like fractions:
8/200 - 405/200 = 8 - 405/200 = -397/200
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