Subtract 81/40 from 36/5
1st number: 7 1/5, 2nd number: 2 1/40
36/5 - 81/40 is 207/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
36/5 = 36 × 8/5 × 8 = 288/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
81/40 = 81 × 1/40 × 1 = 81/40 - Subtract the two like fractions:
288/40 - 81/40 = 288 - 81/40 = 207/40 - In mixed form: 57/40
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