Subtract 81/40 from 24/35, Solve 24/35

Subtract 81/40 from 24/35

1^st number: 24/35, 2^nd number: 2 1/40

24/35 - 81/40 is -75/56.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 35 × 8 = 280,
24/35 = 24 × 8/35 × 8 = 192/280
Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280
Subtract the two like fractions:
192/280 - 567/280 = 192 - 567/280 = -375/280
After reducing the fraction, the answer is -75/56

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