Subtract 42/54 from 2/3
2/3 - 42/54 is -1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 3 × 18 = 54,
2/3 = 2 × 18/3 × 18 = 36/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
42/54 = 42 × 1/54 × 1 = 42/54 - Subtract the two like fractions:
36/54 - 42/54 = 36 - 42/54 = -6/54 - After reducing the fraction, the answer is -1/9
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