Subtract 18/27 from 81/45
1st number: 1 36/45, 2nd number: 18/27
81/45 - 18/27 is 17/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 45 × 3 = 135,
81/45 = 81 × 3/45 × 3 = 243/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
18/27 = 18 × 5/27 × 5 = 90/135 - Subtract the two like fractions:
243/135 - 90/135 = 243 - 90/135 = 153/135 - After reducing the fraction, the answer is 17/15
- In mixed form: 12/15
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