Add 12/10 and 84/9
1st number: 1 2/10, 2nd number: 9 3/9
12/10 + 84/9 is 158/15.
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,
12/10 = 12 × 9/10 × 9 = 108/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
84/9 = 84 × 10/9 × 10 = 840/90 - Add the two like fractions:
108/90 + 840/90 = 108 + 840/90 = 948/90 - 948/90 simplified gives 158/15
- So, 12/10 + 84/9 = 158/15
In mixed form: 108/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/10+84/9 12/20+84/9 12/10+84/18 36/10+84/9 12/30+84/9 12/10+84/27 60/10+84/9 12/50+84/9 12/10+84/45 84/10+84/9 12/70+84/9 12/10+84/63