Subtract 1/9 from 18/27
18/27 - 1/9 is 5/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 27 × 1 = 27,
18/27 = 18 × 1/27 × 1 = 18/27 - Likewise, for the 2nd fraction, since 9 × 3 = 27,
1/9 = 1 × 3/9 × 3 = 3/27 - Subtract the two like fractions:
18/27 - 3/27 = 18 - 3/27 = 15/27 - After reducing the fraction, the answer is 5/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/27-1/9 18/27-2/9 18/54-1/9 18/27-1/18 54/27-1/9 18/27-3/9 18/81-1/9 18/27-1/27 90/27-1/9 18/27-5/9 18/27-1/45 18/27-7/9 18/27-1/63