Subtract 6/12 from 75/81
75/81 - 6/12 is 23/54.
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,
75/81 = 75 × 4/81 × 4 = 300/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
6/12 = 6 × 27/12 × 27 = 162/324 - Subtract the two like fractions:
300/324 - 162/324 = 300 - 162/324 = 138/324 - After reducing the fraction, the answer is 23/54
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