Add 12/5 and 28/20
1st number: 2 2/5, 2nd number: 1 8/20
12/5 + 28/20 is 19/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
12/5 = 12 × 4/5 × 4 = 48/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
28/20 = 28 × 1/20 × 1 = 28/20 - Add the two like fractions:
48/20 + 28/20 = 48 + 28/20 = 76/20 - 76/20 simplified gives 19/5
- So, 12/5 + 28/20 = 19/5
In mixed form: 34/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+28/20 12/5+56/20 12/10+28/20 12/5+28/40 36/5+28/20 12/5+84/20 12/15+28/20 12/5+28/60 60/5+28/20 12/25+28/20 84/5+28/20 12/35+28/20