Subtract 20/63 from 54/45
1st number: 1 9/45, 2nd number: 20/63
54/45 - 20/63 is 278/315.
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,
54/45 = 54 × 7/45 × 7 = 378/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
20/63 = 20 × 5/63 × 5 = 100/315 - Subtract the two like fractions:
378/315 - 100/315 = 378 - 100/315 = 278/315
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