Subtract 27/18 from 42/75
1st number: 42/75, 2nd number: 1 9/18
42/75 - 27/18 is -47/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
42/75 = 42 × 6/75 × 6 = 252/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
27/18 = 27 × 25/18 × 25 = 675/450 - Subtract the two like fractions:
252/450 - 675/450 = 252 - 675/450 = -423/450 - After reducing the fraction, the answer is -47/50
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