Add 15/10 and 42/3
1st number: 1 5/10, 2nd number: 14 0/3
15/10 + 42/3 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
15/10 = 15 × 3/10 × 3 = 45/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
42/3 = 42 × 10/3 × 10 = 420/30 - Add the two like fractions:
45/30 + 420/30 = 45 + 420/30 = 465/30 - 465/30 simplified gives 31/2
- So, 15/10 + 42/3 = 31/2
In mixed form: 151/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+42/3 15/10+84/3 15/20+42/3 15/10+42/6 45/10+42/3 15/30+42/3 15/10+42/9 75/10+42/3 15/50+42/3 15/10+42/15 15/70+42/3 15/10+42/21