Subtract 20/24 from 20/54
20/54 - 20/24 is -25/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 24 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
20/54 = 20 × 4/54 × 4 = 80/216 - Likewise, for the 2nd fraction, since 24 × 9 = 216,
20/24 = 20 × 9/24 × 9 = 180/216 - Subtract the two like fractions:
80/216 - 180/216 = 80 - 180/216 = -100/216 - After reducing the fraction, the answer is -25/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/54-20/24 20/54-40/24 20/54-20/48 60/54-20/24 20/54-60/24 20/54-20/72