Add 3/10 and 12/9
1st number: 3/10, 2nd number: 1 3/9
3/10 + 12/9 is 49/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
3/10 = 3 × 9/10 × 9 = 27/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
12/9 = 12 × 10/9 × 10 = 120/90 - Add the two like fractions:
27/90 + 120/90 = 27 + 120/90 = 147/90 - 147/90 simplified gives 49/30
- So, 3/10 + 12/9 = 49/30
In mixed form: 119/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10+12/9 3/10+24/9 3/20+12/9 3/10+12/18 9/10+12/9 3/10+36/9 3/30+12/9 3/10+12/27 15/10+12/9 3/10+60/9 3/50+12/9 3/10+12/45 21/10+12/9 3/10+84/9 3/70+12/9 3/10+12/63