Subtract 72/24 from 21/14
1st number: 1 7/14, 2nd number: 3 0/24
21/14 - 72/24 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 14 × 12 = 168,
21/14 = 21 × 12/14 × 12 = 252/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
72/24 = 72 × 7/24 × 7 = 504/168 - Subtract the two like fractions:
252/168 - 504/168 = 252 - 504/168 = -252/168 - After reducing the fraction, the answer is -3/2
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