Subtract 18/54 from 81/45
1st number: 1 36/45, 2nd number: 18/54
81/45 - 18/54 is 22/15.
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,
81/45 = 81 × 6/45 × 6 = 486/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
18/54 = 18 × 5/54 × 5 = 90/270 - Subtract the two like fractions:
486/270 - 90/270 = 486 - 90/270 = 396/270 - After reducing the fraction, the answer is 22/15
- In mixed form: 17/15
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