Subtract 28/24 from 40/84
1st number: 40/84, 2nd number: 1 4/24
40/84 - 28/24 is -29/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
40/84 = 40 × 2/84 × 2 = 80/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
28/24 = 28 × 7/24 × 7 = 196/168 - Subtract the two like fractions:
80/168 - 196/168 = 80 - 196/168 = -116/168 - After reducing the fraction, the answer is -29/42
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