Subtract 20/9 from 10/28
1st number: 10/28, 2nd number: 2 2/9
10/28 - 20/9 is -235/126.
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,
10/28 = 10 × 9/28 × 9 = 90/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252 - Subtract the two like fractions:
90/252 - 560/252 = 90 - 560/252 = -470/252 - After reducing the fraction, the answer is -235/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28-20/9 10/28-40/9 10/56-20/9 10/28-20/18 30/28-20/9 10/28-60/9 10/84-20/9 10/28-20/27 50/28-20/9 10/28-20/45 70/28-20/9 10/28-20/63