Subtract 42/18 from 72/54
1st number: 1 18/54, 2nd number: 2 6/18
72/54 - 42/18 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
72/54 = 72 × 1/54 × 1 = 72/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
42/18 = 42 × 3/18 × 3 = 126/54 - Subtract the two like fractions:
72/54 - 126/54 = 72 - 126/54 = -54/54 - After reducing the fraction, the answer is -1/1
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