Subtract 18/27 from 1/6
1/6 - 18/27 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 6 × 9 = 54,
1/6 = 1 × 9/6 × 9 = 9/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
18/27 = 18 × 2/27 × 2 = 36/54 - Subtract the two like fractions:
9/54 - 36/54 = 9 - 36/54 = -27/54 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/6-18/27 1/6-36/27 1/12-18/27 1/6-18/54 3/6-18/27 1/6-54/27 1/18-18/27 1/6-18/81 5/6-18/27 1/6-90/27 1/30-18/27 7/6-18/27 1/42-18/27