Subtract 27/24 from 72/84
1st number: 72/84, 2nd number: 1 3/24
72/84 - 27/24 is -15/56.
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,
72/84 = 72 × 2/84 × 2 = 144/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
27/24 = 27 × 7/24 × 7 = 189/168 - Subtract the two like fractions:
144/168 - 189/168 = 144 - 189/168 = -45/168 - After reducing the fraction, the answer is -15/56
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