Subtract 20/6 from 42/27
1st number: 1 15/27, 2nd number: 3 2/6
42/27 - 20/6 is -16/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 6 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
42/27 = 42 × 2/27 × 2 = 84/54 - Likewise, for the 2nd fraction, since 6 × 9 = 54,
20/6 = 20 × 9/6 × 9 = 180/54 - Subtract the two like fractions:
84/54 - 180/54 = 84 - 180/54 = -96/54 - After reducing the fraction, the answer is -16/9
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