Subtract 20/18 from 2/54
1st number: 2/54, 2nd number: 1 2/18
2/54 - 20/18 is -29/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
2/54 = 2 × 1/54 × 1 = 2/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
20/18 = 20 × 3/18 × 3 = 60/54 - Subtract the two like fractions:
2/54 - 60/54 = 2 - 60/54 = -58/54 - After reducing the fraction, the answer is -29/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/54-20/18 2/54-40/18 2/54-20/36 6/54-20/18 2/54-60/18 2/54-20/54 10/54-20/18 2/54-20/90 14/54-20/18