Subtract 12/5 from 42/63
1st number: 42/63, 2nd number: 2 2/5
42/63 - 12/5 is -26/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
42/63 = 42 × 5/63 × 5 = 210/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
12/5 = 12 × 63/5 × 63 = 756/315 - Subtract the two like fractions:
210/315 - 756/315 = 210 - 756/315 = -546/315 - After reducing the fraction, the answer is -26/15
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