Add 25/45 and 12/9
1st number: 25/45, 2nd number: 1 3/9
25/45 + 12/9 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
25/45 = 25 × 1/45 × 1 = 25/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
12/9 = 12 × 5/9 × 5 = 60/45 - Add the two like fractions:
25/45 + 60/45 = 25 + 60/45 = 85/45 - 85/45 simplified gives 17/9
- So, 25/45 + 12/9 = 17/9
In mixed form: 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+12/9 25/45+24/9 25/90+12/9 25/45+12/18 75/45+12/9 25/45+36/9 25/45+12/27 25/45+60/9 25/45+12/45 25/45+84/9 25/45+12/63