Subtract 81/15 from 24/42
1st number: 24/42, 2nd number: 5 6/15
24/42 - 81/15 is -169/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
24/42 = 24 × 5/42 × 5 = 120/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
81/15 = 81 × 14/15 × 14 = 1134/210 - Subtract the two like fractions:
120/210 - 1134/210 = 120 - 1134/210 = -1014/210 - After reducing the fraction, the answer is -169/35
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