Subtract 9/40 from 81/50
1st number: 1 31/50, 2nd number: 9/40
81/50 - 9/40 is 279/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
81/50 = 81 × 4/50 × 4 = 324/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
9/40 = 9 × 5/40 × 5 = 45/200 - Subtract the two like fractions:
324/200 - 45/200 = 324 - 45/200 = 279/200 - In mixed form: 179/200
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