Subtract 81/18 from 10/12
1st number: 10/12, 2nd number: 4 9/18
10/12 - 81/18 is -11/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
10/12 = 10 × 3/12 × 3 = 30/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
81/18 = 81 × 2/18 × 2 = 162/36 - Subtract the two like fractions:
30/36 - 162/36 = 30 - 162/36 = -132/36 - After reducing the fraction, the answer is -11/3
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