Subtract 42/63 from 72/45
1st number: 1 27/45, 2nd number: 42/63
72/45 - 42/63 is 14/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
72/45 = 72 × 7/45 × 7 = 504/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
42/63 = 42 × 5/63 × 5 = 210/315 - Subtract the two like fractions:
504/315 - 210/315 = 504 - 210/315 = 294/315 - After reducing the fraction, the answer is 14/15
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