Add 8/12 and 18/9
1st number: 8/12, 2nd number: 2 0/9
8/12 + 18/9 is 8/3.
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,
8/12 = 8 × 3/12 × 3 = 24/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
18/9 = 18 × 4/9 × 4 = 72/36 - Add the two like fractions:
24/36 + 72/36 = 24 + 72/36 = 96/36 - 96/36 simplified gives 8/3
- So, 8/12 + 18/9 = 8/3
In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/12+18/9 8/12+36/9 8/24+18/9 24/12+18/9 8/12+54/9 8/36+18/9 8/12+18/27 40/12+18/9 8/12+90/9 8/60+18/9 8/12+18/45 56/12+18/9 8/84+18/9 8/12+18/63