Add 18/30 and 28/9
1st number: 18/30, 2nd number: 3 1/9
18/30 + 28/9 is 167/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
18/30 = 18 × 3/30 × 3 = 54/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
28/9 = 28 × 10/9 × 10 = 280/90 - Add the two like fractions:
54/90 + 280/90 = 54 + 280/90 = 334/90 - 334/90 simplified gives 167/45
- So, 18/30 + 28/9 = 167/45
In mixed form: 332/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+28/9 18/30+56/9 18/60+28/9 18/30+28/18 54/30+28/9 18/30+84/9 18/90+28/9 18/30+28/27 90/30+28/9 18/30+28/45 18/30+28/63