Add 9/5 and 18/9
1st number: 1 4/5, 2nd number: 2 0/9
9/5 + 18/9 is 19/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
9/5 = 9 × 9/5 × 9 = 81/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
18/9 = 18 × 5/9 × 5 = 90/45 - Add the two like fractions:
81/45 + 90/45 = 81 + 90/45 = 171/45 - 171/45 simplified gives 19/5
- So, 9/5 + 18/9 = 19/5
In mixed form: 34/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/5+18/9 9/5+36/9 9/10+18/9 27/5+18/9 9/5+54/9 9/15+18/9 9/5+18/27 45/5+18/9 9/5+90/9 9/25+18/9 9/5+18/45 63/5+18/9 9/35+18/9 9/5+18/63