Subtract 5/9 from 20/28
20/28 - 5/9 is 10/63.
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,
20/28 = 20 × 9/28 × 9 = 180/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
5/9 = 5 × 28/9 × 28 = 140/252 - Subtract the two like fractions:
180/252 - 140/252 = 180 - 140/252 = 40/252 - After reducing the fraction, the answer is 10/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28-5/9 20/28-10/9 20/56-5/9 20/28-5/18 60/28-5/9 20/28-15/9 20/84-5/9 20/28-5/27 20/28-25/9 20/28-5/45 20/28-35/9 20/28-5/63