Subtract 72/27 from 8/9
1st number: 8/9, 2nd number: 2 18/27
8/9 - 72/27 is -16/9.
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,
8/9 = 8 × 3/9 × 3 = 24/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
72/27 = 72 × 1/27 × 1 = 72/27 - Subtract the two like fractions:
24/27 - 72/27 = 24 - 72/27 = -48/27 - After reducing the fraction, the answer is -16/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/9-72/27 8/18-72/27 8/9-72/54 24/9-72/27 8/27-72/27 8/9-72/81 40/9-72/27 8/45-72/27 56/9-72/27 8/63-72/27