Subtract 81/30 from 5/6
1st number: 5/6, 2nd number: 2 21/30
5/6 - 81/30 is -28/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
5/6 = 5 × 5/6 × 5 = 25/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
81/30 = 81 × 1/30 × 1 = 81/30 - Subtract the two like fractions:
25/30 - 81/30 = 25 - 81/30 = -56/30 - After reducing the fraction, the answer is -28/15
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