Subtract 20/54 from 6/27
6/27 - 20/54 is -4/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
6/27 = 6 × 2/27 × 2 = 12/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
20/54 = 20 × 1/54 × 1 = 20/54 - Subtract the two like fractions:
12/54 - 20/54 = 12 - 20/54 = -8/54 - After reducing the fraction, the answer is -4/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/27-20/54 6/27-40/54 6/54-20/54 18/27-20/54 6/27-60/54 6/81-20/54 30/27-20/54 42/27-20/54