Subtract 42/81 from 36/12
1st number: 3 0/12, 2nd number: 42/81
36/12 - 42/81 is 67/27.
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,
36/12 = 36 × 27/12 × 27 = 972/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
42/81 = 42 × 4/81 × 4 = 168/324 - Subtract the two like fractions:
972/324 - 168/324 = 972 - 168/324 = 804/324 - After reducing the fraction, the answer is 67/27
- In mixed form: 213/27
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