Add 20/10 and 3/15
1st number: 2 0/10, 2nd number: 3/15
20/10 + 3/15 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
20/10 = 20 × 3/10 × 3 = 60/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
3/15 = 3 × 2/15 × 2 = 6/30 - Add the two like fractions:
60/30 + 6/30 = 60 + 6/30 = 66/30 - 66/30 simplified gives 11/5
- So, 20/10 + 3/15 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/10+3/15 20/10+6/15 20/10+3/30 60/10+3/15 20/10+9/15 20/30+3/15 20/10+3/45 20/50+3/15 20/10+3/75 20/10+21/15 20/70+3/15