Subtract 84/8 from 5/81
1st number: 5/81, 2nd number: 10 4/8
5/81 - 84/8 is -1691/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
5/81 = 5 × 8/81 × 8 = 40/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
84/8 = 84 × 81/8 × 81 = 6804/648 - Subtract the two like fractions:
40/648 - 6804/648 = 40 - 6804/648 = -6764/648 - After reducing the fraction, the answer is -1691/162
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