Add 28/8 and 30/9
1st number: 3 4/8, 2nd number: 3 3/9
28/8 + 30/9 is 41/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
28/8 = 28 × 9/8 × 9 = 252/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
30/9 = 30 × 8/9 × 8 = 240/72 - Add the two like fractions:
252/72 + 240/72 = 252 + 240/72 = 492/72 - 492/72 simplified gives 41/6
- So, 28/8 + 30/9 = 41/6
In mixed form: 65/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+30/9 28/8+60/9 28/16+30/9 28/8+30/18 84/8+30/9 28/8+90/9 28/24+30/9 28/8+30/27 28/40+30/9 28/8+30/45 28/56+30/9 28/8+30/63