Subtract 84/81 from 8/54
1st number: 8/54, 2nd number: 1 3/81
8/54 - 84/81 is -8/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 54 × 3 = 162,
8/54 = 8 × 3/54 × 3 = 24/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
84/81 = 84 × 2/81 × 2 = 168/162 - Subtract the two like fractions:
24/162 - 168/162 = 24 - 168/162 = -144/162 - After reducing the fraction, the answer is -8/9
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