Add 20/15 and 2/10
1st number: 1 5/15, 2nd number: 2/10
20/15 + 2/10 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
20/15 = 20 × 2/15 × 2 = 40/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
2/10 = 2 × 3/10 × 3 = 6/30 - Add the two like fractions:
40/30 + 6/30 = 40 + 6/30 = 46/30 - 46/30 simplified gives 23/15
- So, 20/15 + 2/10 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+2/10 20/15+4/10 20/30+2/10 20/15+2/20 60/15+2/10 20/15+6/10 20/45+2/10 20/15+2/30 20/75+2/10 20/15+2/50 20/15+14/10 20/15+2/70