Subtract 30/27 from 28/9
1st number: 3 1/9, 2nd number: 1 3/27
28/9 - 30/27 is 2/1.
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,
28/9 = 28 × 3/9 × 3 = 84/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
30/27 = 30 × 1/27 × 1 = 30/27 - Subtract the two like fractions:
84/27 - 30/27 = 84 - 30/27 = 54/27 - After reducing the fraction, the answer is 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9-30/27 28/9-60/27 28/18-30/27 28/9-30/54 84/9-30/27 28/9-90/27 28/27-30/27 28/9-30/81 28/45-30/27 28/63-30/27