Add 28/5 and 75/20
1st number: 5 3/5, 2nd number: 3 15/20
28/5 + 75/20 is 187/20.
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,
28/5 = 28 × 4/5 × 4 = 112/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
75/20 = 75 × 1/20 × 1 = 75/20 - Add the two like fractions:
112/20 + 75/20 = 112 + 75/20 = 187/20 - So, 28/5 + 75/20 = 187/20
In mixed form: 97/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5+75/20 28/10+75/20 28/5+75/40 84/5+75/20 28/15+75/20 28/5+75/60 28/25+75/20 28/35+75/20