Subtract 5/6 from 20/27
20/27 - 5/6 is -5/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 6 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
20/27 = 20 × 2/27 × 2 = 40/54 - Likewise, for the 2nd fraction, since 6 × 9 = 54,
5/6 = 5 × 9/6 × 9 = 45/54 - Subtract the two like fractions:
40/54 - 45/54 = 40 - 45/54 = -5/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/27-5/6 20/27-10/6 20/54-5/6 20/27-5/12 60/27-5/6 20/27-15/6 20/81-5/6 20/27-5/18 20/27-25/6 20/27-5/30 20/27-35/6 20/27-5/42