Subtract 12/7 from 40/24
1st number: 1 16/24, 2nd number: 1 5/7
40/24 - 12/7 is -1/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 7 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
40/24 = 40 × 7/24 × 7 = 280/168 - Likewise, for the 2nd fraction, since 7 × 24 = 168,
12/7 = 12 × 24/7 × 24 = 288/168 - Subtract the two like fractions:
280/168 - 288/168 = 280 - 288/168 = -8/168 - After reducing the fraction, the answer is -1/21
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