Subtract 7/81 from 28/12
1st number: 2 4/12, 2nd number: 7/81
28/12 - 7/81 is 182/81.
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,
28/12 = 28 × 27/12 × 27 = 756/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
7/81 = 7 × 4/81 × 4 = 28/324 - Subtract the two like fractions:
756/324 - 28/324 = 756 - 28/324 = 728/324 - After reducing the fraction, the answer is 182/81
- In mixed form: 220/81
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