Add 15/25 and 3/10
15/25 + 3/10 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 25 × 2 = 50,
15/25 = 15 × 2/25 × 2 = 30/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
3/10 = 3 × 5/10 × 5 = 15/50 - Add the two like fractions:
30/50 + 15/50 = 30 + 15/50 = 45/50 - 45/50 simplified gives 9/10
- So, 15/25 + 3/10 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/25+3/10 15/25+6/10 15/50+3/10 15/25+3/20 45/25+3/10 15/25+9/10 15/75+3/10 15/25+3/30 75/25+3/10 15/25+15/10 15/25+3/50 15/25+21/10 15/25+3/70