Subtract 81/25 from 1/40
1st number: 1/40, 2nd number: 3 6/25
1/40 - 81/25 is -643/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
1/40 = 1 × 5/40 × 5 = 5/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
81/25 = 81 × 8/25 × 8 = 648/200 - Subtract the two like fractions:
5/200 - 648/200 = 5 - 648/200 = -643/200
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