Add 30/9 and 42/10
1st number: 3 3/9, 2nd number: 4 2/10
30/9 + 42/10 is 113/15.
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,
30/9 = 30 × 10/9 × 10 = 300/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Add the two like fractions:
300/90 + 378/90 = 300 + 378/90 = 678/90 - 678/90 simplified gives 113/15
- So, 30/9 + 42/10 = 113/15
In mixed form: 78/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+42/10 30/9+84/10 30/18+42/10 30/9+42/20 90/9+42/10 30/27+42/10 30/9+42/30 30/45+42/10 30/9+42/50 30/63+42/10 30/9+42/70