Subtract 15/27 from 7/9
7/9 - 15/27 is 2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 9 × 3 = 27,
7/9 = 7 × 3/9 × 3 = 21/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
15/27 = 15 × 1/27 × 1 = 15/27 - Subtract the two like fractions:
21/27 - 15/27 = 21 - 15/27 = 6/27 - After reducing the fraction, the answer is 2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9-15/27 7/9-30/27 7/18-15/27 7/9-15/54 21/9-15/27 7/9-45/27 7/27-15/27 7/9-15/81 35/9-15/27 7/9-75/27 7/45-15/27 49/9-15/27 7/63-15/27