Subtract 1/81 from 15/12
1st number: 1 3/12, 2nd number: 1/81
15/12 - 1/81 is 401/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
15/12 = 15 × 27/12 × 27 = 405/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
1/81 = 1 × 4/81 × 4 = 4/324 - Subtract the two like fractions:
405/324 - 4/324 = 405 - 4/324 = 401/324 - In mixed form: 177/324
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