Add 12/9 and 84/10
1st number: 1 3/9, 2nd number: 8 4/10
12/9 + 84/10 is 146/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
12/9 = 12 × 10/9 × 10 = 120/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
84/10 = 84 × 9/10 × 9 = 756/90 - Add the two like fractions:
120/90 + 756/90 = 120 + 756/90 = 876/90 - 876/90 simplified gives 146/15
- So, 12/9 + 84/10 = 146/15
In mixed form: 911/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9+84/10 12/18+84/10 12/9+84/20 36/9+84/10 12/27+84/10 12/9+84/30 60/9+84/10 12/45+84/10 12/9+84/50 84/9+84/10 12/63+84/10 12/9+84/70