Subtract 40/3 from 81/30
1st number: 2 21/30, 2nd number: 13 1/3
81/30 - 40/3 is -319/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
81/30 = 81 × 1/30 × 1 = 81/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
40/3 = 40 × 10/3 × 10 = 400/30 - Subtract the two like fractions:
81/30 - 400/30 = 81 - 400/30 = -319/30
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