Add 20/14 and 28/20
1st number: 1 6/14, 2nd number: 1 8/20
20/14 + 28/20 is 99/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
20/14 = 20 × 10/14 × 10 = 200/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
28/20 = 28 × 7/20 × 7 = 196/140 - Add the two like fractions:
200/140 + 196/140 = 200 + 196/140 = 396/140 - 396/140 simplified gives 99/35
- So, 20/14 + 28/20 = 99/35
In mixed form: 229/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14+28/20 20/14+56/20 20/28+28/20 20/14+28/40 60/14+28/20 20/14+84/20 20/42+28/20 20/14+28/60 20/70+28/20 20/98+28/20