Subtract 27/28 from 20/3
1st number: 6 2/3, 2nd number: 27/28
20/3 - 27/28 is 479/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
20/3 = 20 × 28/3 × 28 = 560/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
27/28 = 27 × 3/28 × 3 = 81/84 - Subtract the two like fractions:
560/84 - 81/84 = 560 - 81/84 = 479/84 - In mixed form: 559/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3-27/28 20/3-54/28 20/6-27/28 20/3-27/56 60/3-27/28 20/3-81/28 20/9-27/28 20/3-27/84 20/15-27/28 20/21-27/28