Subtract 72/54 from 63/45
1st number: 1 18/45, 2nd number: 1 18/54
63/45 - 72/54 is 1/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
63/45 = 63 × 6/45 × 6 = 378/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
72/54 = 72 × 5/54 × 5 = 360/270 - Subtract the two like fractions:
378/270 - 360/270 = 378 - 360/270 = 18/270 - After reducing the fraction, the answer is 1/15
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