Subtract 42/54 from 27/75
27/75 - 42/54 is -94/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 54 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 75 × 18 = 1350,
27/75 = 27 × 18/75 × 18 = 486/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
42/54 = 42 × 25/54 × 25 = 1050/1350 - Subtract the two like fractions:
486/1350 - 1050/1350 = 486 - 1050/1350 = -564/1350 - After reducing the fraction, the answer is -94/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/75-42/54 27/75-84/54 81/75-42/54