Subtract 40/54 from 18/50
18/50 - 40/54 is -257/675.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 54 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 50 × 27 = 1350,
18/50 = 18 × 27/50 × 27 = 486/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
40/54 = 40 × 25/54 × 25 = 1000/1350 - Subtract the two like fractions:
486/1350 - 1000/1350 = 486 - 1000/1350 = -514/1350 - After reducing the fraction, the answer is -257/675
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/50-40/54 18/50-80/54 54/50-40/54 90/50-40/54