Add 28/45 and 18/25
28/45 + 18/25 is 302/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
28/45 = 28 × 5/45 × 5 = 140/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
18/25 = 18 × 9/25 × 9 = 162/225 - Add the two like fractions:
140/225 + 162/225 = 140 + 162/225 = 302/225 - So, 28/45 + 18/25 = 302/225
In mixed form: 177/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+18/25 28/45+36/25 28/90+18/25 28/45+18/50 84/45+18/25 28/45+54/25 28/45+18/75 28/45+90/25