Add 20/8 and 28/12
1st number: 2 4/8, 2nd number: 2 4/12
20/8 + 28/12 is 29/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
20/8 = 20 × 3/8 × 3 = 60/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
28/12 = 28 × 2/12 × 2 = 56/24 - Add the two like fractions:
60/24 + 56/24 = 60 + 56/24 = 116/24 - 116/24 simplified gives 29/6
- So, 20/8 + 28/12 = 29/6
In mixed form: 45/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+28/12 20/8+56/12 20/16+28/12 20/8+28/24 60/8+28/12 20/8+84/12 20/24+28/12 20/8+28/36 20/40+28/12 20/8+28/60 20/56+28/12 20/8+28/84