Add 28/15 and 5/20
1st number: 1 13/15, 2nd number: 5/20
28/15 + 5/20 is 127/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Add the two like fractions:
112/60 + 15/60 = 112 + 15/60 = 127/60 - So, 28/15 + 5/20 = 127/60
In mixed form: 27/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+5/20 28/15+10/20 28/30+5/20 28/15+5/40 84/15+5/20 28/15+15/20 28/45+5/20 28/15+5/60 28/15+25/20 28/75+5/20 28/15+35/20