Add 15/20 and 2/5
15/20 + 2/5 is 23/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
15/20 = 15 × 1/20 × 1 = 15/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
2/5 = 2 × 4/5 × 4 = 8/20 - Add the two like fractions:
15/20 + 8/20 = 15 + 8/20 = 23/20 - So, 15/20 + 2/5 = 23/20
In mixed form: 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20+2/5 15/20+4/5 15/40+2/5 15/20+2/10 45/20+2/5 15/20+6/5 15/60+2/5 15/20+2/15 75/20+2/5 15/20+10/5 15/20+2/25 15/20+14/5 15/20+2/35