Add 30/45 and 45/25
1st number: 30/45, 2nd number: 1 20/25
30/45 + 45/25 is 37/15.
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,
45/25 = 45 × 9/25 × 9 = 405/225 - Add the two like fractions:
150/225 + 405/225 = 150 + 405/225 = 555/225 - 555/225 simplified gives 37/15
- So, 30/45 + 45/25 = 37/15
In mixed form: 27/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45+45/25 30/45+90/25 30/90+45/25 30/45+45/50 90/45+45/25 30/45+45/75