Subtract 49/45 from 54/63
1st number: 54/63, 2nd number: 1 4/45
54/63 - 49/45 is -73/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
54/63 = 54 × 5/63 × 5 = 270/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
49/45 = 49 × 7/45 × 7 = 343/315 - Subtract the two like fractions:
270/315 - 343/315 = 270 - 343/315 = -73/315
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