Subtract 81/12 from 6/40
1st number: 6/40, 2nd number: 6 9/12
6/40 - 81/12 is -33/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
6/40 = 6 × 3/40 × 3 = 18/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
81/12 = 81 × 10/12 × 10 = 810/120 - Subtract the two like fractions:
18/120 - 810/120 = 18 - 810/120 = -792/120 - After reducing the fraction, the answer is -33/5
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