Subtract 56/81 from 72/18
1st number: 4 0/18, 2nd number: 56/81
72/18 - 56/81 is 268/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
72/18 = 72 × 9/18 × 9 = 648/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
56/81 = 56 × 2/81 × 2 = 112/162 - Subtract the two like fractions:
648/162 - 112/162 = 648 - 112/162 = 536/162 - After reducing the fraction, the answer is 268/81
- In mixed form: 325/81
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