Add 5/20 and 20/28
5/20 + 20/28 is 27/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
5/20 = 5 × 7/20 × 7 = 35/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
20/28 = 20 × 5/28 × 5 = 100/140 - Add the two like fractions:
35/140 + 100/140 = 35 + 100/140 = 135/140 - 135/140 simplified gives 27/28
- So, 5/20 + 20/28 = 27/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+20/28 5/20+40/28 5/40+20/28 5/20+20/56 15/20+20/28 5/20+60/28 5/60+20/28 5/20+20/84 25/20+20/28 35/20+20/28