Subtract 27/9 from 20/54
1st number: 20/54, 2nd number: 3 0/9
20/54 - 27/9 is -71/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
20/54 = 20 × 1/54 × 1 = 20/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
27/9 = 27 × 6/9 × 6 = 162/54 - Subtract the two like fractions:
20/54 - 162/54 = 20 - 162/54 = -142/54 - After reducing the fraction, the answer is -71/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/54-27/9 20/54-54/9 20/54-27/18 60/54-27/9 20/54-81/9 20/54-27/45 20/54-27/63