Add 15/9 and 6/20
1st number: 1 6/9, 2nd number: 6/20
15/9 + 6/20 is 59/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
15/9 = 15 × 20/9 × 20 = 300/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
6/20 = 6 × 9/20 × 9 = 54/180 - Add the two like fractions:
300/180 + 54/180 = 300 + 54/180 = 354/180 - 354/180 simplified gives 59/30
- So, 15/9 + 6/20 = 59/30
In mixed form: 129/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+6/20 15/9+12/20 15/18+6/20 15/9+6/40 45/9+6/20 15/9+18/20 15/27+6/20 15/9+6/60 75/9+6/20 15/9+30/20 15/45+6/20 15/9+42/20 15/63+6/20