Subtract 81/50 from 8/40
1st number: 8/40, 2nd number: 1 31/50
8/40 - 81/50 is -71/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 50 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
8/40 = 8 × 5/40 × 5 = 40/200 - Likewise, for the 2nd fraction, since 50 × 4 = 200,
81/50 = 81 × 4/50 × 4 = 324/200 - Subtract the two like fractions:
40/200 - 324/200 = 40 - 324/200 = -284/200 - After reducing the fraction, the answer is -71/50
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