Subtract 2/30 from 81/45
1st number: 1 36/45, 2nd number: 2/30
81/45 - 2/30 is 26/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
81/45 = 81 × 2/45 × 2 = 162/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
2/30 = 2 × 3/30 × 3 = 6/90 - Subtract the two like fractions:
162/90 - 6/90 = 162 - 6/90 = 156/90 - After reducing the fraction, the answer is 26/15
- In mixed form: 111/15
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