Subtract 20/27 from 42/18
1st number: 2 6/18, 2nd number: 20/27
42/18 - 20/27 is 43/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
42/18 = 42 × 3/18 × 3 = 126/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
20/27 = 20 × 2/27 × 2 = 40/54 - Subtract the two like fractions:
126/54 - 40/54 = 126 - 40/54 = 86/54 - After reducing the fraction, the answer is 43/27
- In mixed form: 116/27
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