Add 20/28 and 2/3
20/28 + 2/3 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
20/28 = 20 × 3/28 × 3 = 60/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
2/3 = 2 × 28/3 × 28 = 56/84 - Add the two like fractions:
60/84 + 56/84 = 60 + 56/84 = 116/84 - 116/84 simplified gives 29/21
- So, 20/28 + 2/3 = 29/21
In mixed form: 18/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28+2/3 20/28+4/3 20/56+2/3 20/28+2/6 60/28+2/3 20/28+6/3 20/84+2/3 20/28+2/9 20/28+10/3 20/28+2/15 20/28+14/3 20/28+2/21