Subtract 42/63 from 75/54
1st number: 1 21/54, 2nd number: 42/63
75/54 - 42/63 is 13/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
75/54 = 75 × 7/54 × 7 = 525/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
42/63 = 42 × 6/63 × 6 = 252/378 - Subtract the two like fractions:
525/378 - 252/378 = 525 - 252/378 = 273/378 - After reducing the fraction, the answer is 13/18
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