Add 28/20 and 12/5
1st number: 1 8/20, 2nd number: 2 2/5
28/20 + 12/5 is 19/5.
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,
28/20 = 28 × 1/20 × 1 = 28/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
12/5 = 12 × 4/5 × 4 = 48/20 - Add the two like fractions:
28/20 + 48/20 = 28 + 48/20 = 76/20 - 76/20 simplified gives 19/5
- So, 28/20 + 12/5 = 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: 56/20+12/5 28/20+24/5 28/40+12/5 28/20+12/10 84/20+12/5 28/20+36/5 28/60+12/5 28/20+12/15 28/20+60/5 28/20+12/25 28/20+84/5 28/20+12/35