Subtract 42/12 from 35/81
1st number: 35/81, 2nd number: 3 6/12
35/81 - 42/12 is -497/162.
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,
35/81 = 35 × 4/81 × 4 = 140/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
42/12 = 42 × 27/12 × 27 = 1134/324 - Subtract the two like fractions:
140/324 - 1134/324 = 140 - 1134/324 = -994/324 - After reducing the fraction, the answer is -497/162
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