Subtract 42/3 from 21/72
1st number: 21/72, 2nd number: 14 0/3
21/72 - 42/3 is -329/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 3 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Likewise, for the 2nd fraction, since 3 × 24 = 72,
42/3 = 42 × 24/3 × 24 = 1008/72 - Subtract the two like fractions:
21/72 - 1008/72 = 21 - 1008/72 = -987/72 - After reducing the fraction, the answer is -329/24
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