Add 15/20 and 8/6
1st number: 15/20, 2nd number: 1 2/6
15/20 + 8/6 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 6 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
15/20 = 15 × 3/20 × 3 = 45/60 - Likewise, for the 2nd fraction, since 6 × 10 = 60,
8/6 = 8 × 10/6 × 10 = 80/60 - Add the two like fractions:
45/60 + 80/60 = 45 + 80/60 = 125/60 - 125/60 simplified gives 25/12
- So, 15/20 + 8/6 = 25/12
In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20+8/6 15/20+16/6 15/40+8/6 15/20+8/12 45/20+8/6 15/20+24/6 15/60+8/6 15/20+8/18 75/20+8/6 15/20+40/6 15/20+8/30 15/20+56/6 15/20+8/42