Subtract 84/81 from 72/9
1st number: 8 0/9, 2nd number: 1 3/81
72/9 - 84/81 is 188/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
72/9 = 72 × 9/9 × 9 = 648/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
84/81 = 84 × 1/81 × 1 = 84/81 - Subtract the two like fractions:
648/81 - 84/81 = 648 - 84/81 = 564/81 - After reducing the fraction, the answer is 188/27
- In mixed form: 626/27
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