Subtract 81/42 from 32/35
1st number: 32/35, 2nd number: 1 39/42
32/35 - 81/42 is -71/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
32/35 = 32 × 6/35 × 6 = 192/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
81/42 = 81 × 5/42 × 5 = 405/210 - Subtract the two like fractions:
192/210 - 405/210 = 192 - 405/210 = -213/210 - After reducing the fraction, the answer is -71/70
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