Add 9/5 and 15/18
1st number: 1 4/5, 2nd number: 15/18
9/5 + 15/18 is 79/30.
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,
9/5 = 9 × 18/5 × 18 = 162/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Add the two like fractions:
162/90 + 75/90 = 162 + 75/90 = 237/90 - 237/90 simplified gives 79/30
- So, 9/5 + 15/18 = 79/30
In mixed form: 219/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/5+15/18 9/5+30/18 9/10+15/18 9/5+15/36 27/5+15/18 9/5+45/18 9/15+15/18 9/5+15/54 45/5+15/18 9/5+75/18 9/25+15/18 9/5+15/90 63/5+15/18 9/35+15/18