Add 5/20 and 27/28
5/20 + 27/28 is 17/14.
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,
27/28 = 27 × 5/28 × 5 = 135/140 - Add the two like fractions:
35/140 + 135/140 = 35 + 135/140 = 170/140 - 170/140 simplified gives 17/14
- So, 5/20 + 27/28 = 17/14
In mixed form: 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+27/28 5/20+54/28 5/40+27/28 5/20+27/56 15/20+27/28 5/20+81/28 5/60+27/28 5/20+27/84 25/20+27/28 35/20+27/28