Add 30/45 and 18/25
30/45 + 18/25 is 104/75.
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,
30/45 = 30 × 5/45 × 5 = 150/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
18/25 = 18 × 9/25 × 9 = 162/225 - Add the two like fractions:
150/225 + 162/225 = 150 + 162/225 = 312/225 - 312/225 simplified gives 104/75
- So, 30/45 + 18/25 = 104/75
In mixed form: 129/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45+18/25 30/45+36/25 30/90+18/25 30/45+18/50 90/45+18/25 30/45+54/25 30/45+18/75 30/45+90/25