Add 12/25 and 28/45
12/25 + 28/45 is 248/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
12/25 = 12 × 9/25 × 9 = 108/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
28/45 = 28 × 5/45 × 5 = 140/225 - Add the two like fractions:
108/225 + 140/225 = 108 + 140/225 = 248/225 - So, 12/25 + 28/45 = 248/225
In mixed form: 123/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/25+28/45 12/25+56/45 12/50+28/45 12/25+28/90 36/25+28/45 12/25+84/45 12/75+28/45 60/25+28/45 84/25+28/45