Subtract 27/18 from 2/3
1st number: 2/3, 2nd number: 1 9/18
2/3 - 27/18 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
2/3 = 2 × 6/3 × 6 = 12/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
27/18 = 27 × 1/18 × 1 = 27/18 - Subtract the two like fractions:
12/18 - 27/18 = 12 - 27/18 = -15/18 - After reducing the fraction, the answer is -5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/3-27/18 2/3-54/18 2/6-27/18 2/3-27/36 6/3-27/18 2/3-81/18 2/9-27/18 2/3-27/54 10/3-27/18 2/15-27/18 2/3-27/90 14/3-27/18 2/21-27/18