Add 28/12 and 64/9
1st number: 2 4/12, 2nd number: 7 1/9
28/12 + 64/9 is 85/9.
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,
28/12 = 28 × 3/12 × 3 = 84/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
64/9 = 64 × 4/9 × 4 = 256/36 - Add the two like fractions:
84/36 + 256/36 = 84 + 256/36 = 340/36 - 340/36 simplified gives 85/9
- So, 28/12 + 64/9 = 85/9
In mixed form: 94/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+64/9 28/24+64/9 28/12+64/18 84/12+64/9 28/36+64/9 28/12+64/27 28/60+64/9 28/12+64/45 28/84+64/9 28/12+64/63