Add 10/8 and 3/9
1st number: 1 2/8, 2nd number: 3/9
10/8 + 3/9 is 19/12.
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,
10/8 = 10 × 9/8 × 9 = 90/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
3/9 = 3 × 8/9 × 8 = 24/72 - Add the two like fractions:
90/72 + 24/72 = 90 + 24/72 = 114/72 - 114/72 simplified gives 19/12
- So, 10/8 + 3/9 = 19/12
In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/8+3/9 10/8+6/9 10/16+3/9 10/8+3/18 30/8+3/9 10/24+3/9 10/8+3/27 50/8+3/9 10/8+15/9 10/40+3/9 10/8+3/45 70/8+3/9 10/8+21/9 10/56+3/9 10/8+3/63