Subtract 20/9 from 2/28
1st number: 2/28, 2nd number: 2 2/9
2/28 - 20/9 is -271/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
2/28 = 2 × 9/28 × 9 = 18/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252 - Subtract the two like fractions:
18/252 - 560/252 = 18 - 560/252 = -542/252 - After reducing the fraction, the answer is -271/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/28-20/9 2/28-40/9 2/56-20/9 2/28-20/18 6/28-20/9 2/28-60/9 2/84-20/9 2/28-20/27 10/28-20/9 2/28-20/45 14/28-20/9 2/28-20/63