Add 30/12 and 5/9
1st number: 2 6/12, 2nd number: 5/9
30/12 + 5/9 is 55/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
30/12 = 30 × 3/12 × 3 = 90/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
5/9 = 5 × 4/9 × 4 = 20/36 - Add the two like fractions:
90/36 + 20/36 = 90 + 20/36 = 110/36 - 110/36 simplified gives 55/18
- So, 30/12 + 5/9 = 55/18
In mixed form: 31/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12+5/9 30/12+10/9 30/24+5/9 30/12+5/18 90/12+5/9 30/12+15/9 30/36+5/9 30/12+5/27 30/12+25/9 30/60+5/9 30/12+5/45 30/12+35/9 30/84+5/9 30/12+5/63