Subtract 42/81 from 72/6
1st number: 12 0/6, 2nd number: 42/81
72/6 - 42/81 is 310/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
72/6 = 72 × 27/6 × 27 = 1944/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
42/81 = 42 × 2/81 × 2 = 84/162 - Subtract the two like fractions:
1944/162 - 84/162 = 1944 - 84/162 = 1860/162 - After reducing the fraction, the answer is 310/27
- In mixed form: 1113/27
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