Subtract 42/54 from 40/18
1st number: 2 4/18, 2nd number: 42/54
40/18 - 42/54 is 13/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
40/18 = 40 × 3/18 × 3 = 120/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
42/54 = 42 × 1/54 × 1 = 42/54 - Subtract the two like fractions:
120/54 - 42/54 = 120 - 42/54 = 78/54 - After reducing the fraction, the answer is 13/9
- In mixed form: 14/9
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