Subtract 3/12 from 6/81
6/81 - 3/12 is -19/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
6/81 = 6 × 4/81 × 4 = 24/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
3/12 = 3 × 27/12 × 27 = 81/324 - Subtract the two like fractions:
24/324 - 81/324 = 24 - 81/324 = -57/324 - After reducing the fraction, the answer is -19/108
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