Add 15/25 and 8/9
15/25 + 8/9 is 67/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
15/25 = 15 × 9/25 × 9 = 135/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
8/9 = 8 × 25/9 × 25 = 200/225 - Add the two like fractions:
135/225 + 200/225 = 135 + 200/225 = 335/225 - 335/225 simplified gives 67/45
- So, 15/25 + 8/9 = 67/45
In mixed form: 122/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/25+8/9 15/25+16/9 15/50+8/9 15/25+8/18 45/25+8/9 15/25+24/9 15/75+8/9 15/25+8/27 75/25+8/9 15/25+40/9 15/25+8/45 15/25+56/9 15/25+8/63