Add 28/25 and 15/20
1st number: 1 3/25, 2nd number: 15/20
28/25 + 15/20 is 187/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
28/25 = 28 × 4/25 × 4 = 112/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
15/20 = 15 × 5/20 × 5 = 75/100 - Add the two like fractions:
112/100 + 75/100 = 112 + 75/100 = 187/100 - So, 28/25 + 15/20 = 187/100
In mixed form: 187/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/25+15/20 28/25+30/20 28/50+15/20 28/25+15/40 84/25+15/20 28/25+45/20 28/75+15/20 28/25+15/60 28/25+75/20