Add 3/5 and 20/30
3/5 + 20/30 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
3/5 = 3 × 6/5 × 6 = 18/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
20/30 = 20 × 1/30 × 1 = 20/30 - Add the two like fractions:
18/30 + 20/30 = 18 + 20/30 = 38/30 - 38/30 simplified gives 19/15
- So, 3/5 + 20/30 = 19/15
In mixed form: 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5+20/30 3/5+40/30 3/10+20/30 3/5+20/60 9/5+20/30 3/5+60/30 3/15+20/30 3/5+20/90 15/5+20/30 3/25+20/30 21/5+20/30 3/35+20/30