Subtract 40/54 from 25/50
25/50 - 40/54 is -13/54.
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,
25/50 = 25 × 27/50 × 27 = 675/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
40/54 = 40 × 25/54 × 25 = 1000/1350 - Subtract the two like fractions:
675/1350 - 1000/1350 = 675 - 1000/1350 = -325/1350 - After reducing the fraction, the answer is -13/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 25/50-80/54 75/50-40/54