Add 28/5 and 15/18
1st number: 5 3/5, 2nd number: 15/18
28/5 + 15/18 is 193/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
28/5 = 28 × 18/5 × 18 = 504/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Add the two like fractions:
504/90 + 75/90 = 504 + 75/90 = 579/90 - 579/90 simplified gives 193/30
- So, 28/5 + 15/18 = 193/30
In mixed form: 613/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5+15/18 28/5+30/18 28/10+15/18 28/5+15/36 84/5+15/18 28/5+45/18 28/15+15/18 28/5+15/54 28/5+75/18 28/25+15/18 28/5+15/90 28/35+15/18