Subtract 40/30 from 81/35
1st number: 2 11/35, 2nd number: 1 10/30
81/35 - 40/30 is 103/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
81/35 = 81 × 6/35 × 6 = 486/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
40/30 = 40 × 7/30 × 7 = 280/210 - Subtract the two like fractions:
486/210 - 280/210 = 486 - 280/210 = 206/210 - After reducing the fraction, the answer is 103/105
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