Subtract 20/27 from 1/8
1/8 - 20/27 is -133/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
1/8 = 1 × 27/8 × 27 = 27/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
20/27 = 20 × 8/27 × 8 = 160/216 - Subtract the two like fractions:
27/216 - 160/216 = 27 - 160/216 = -133/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/8-20/27 1/8-40/27 1/16-20/27 1/8-20/54 3/8-20/27 1/8-60/27 1/24-20/27 1/8-20/81 5/8-20/27 1/40-20/27 7/8-20/27 1/56-20/27