Subtract 18/9 from 42/2
1st number: 21 0/2, 2nd number: 2 0/9
42/2 - 18/9 is 19/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
42/2 = 42 × 9/2 × 9 = 378/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
18/9 = 18 × 2/9 × 2 = 36/18 - Subtract the two like fractions:
378/18 - 36/18 = 378 - 36/18 = 342/18 - After reducing the fraction, the answer is 19/1
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