Add 3/6 and 15/20
3/6 + 15/20 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
3/6 = 3 × 10/6 × 10 = 30/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
15/20 = 15 × 3/20 × 3 = 45/60 - Add the two like fractions:
30/60 + 45/60 = 30 + 45/60 = 75/60 - 75/60 simplified gives 5/4
- So, 3/6 + 15/20 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6+30/20 3/12+15/20 3/6+15/40 9/6+15/20 3/6+45/20 3/18+15/20 3/6+15/60 15/6+15/20 3/6+75/20 3/30+15/20 21/6+15/20 3/42+15/20