Add 12/45 and 28/18
1st number: 12/45, 2nd number: 1 10/18
12/45 + 28/18 is 82/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Add the two like fractions:
24/90 + 140/90 = 24 + 140/90 = 164/90 - 164/90 simplified gives 82/45
- So, 12/45 + 28/18 = 82/45
In mixed form: 137/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+28/18 12/45+56/18 12/90+28/18 12/45+28/36 36/45+28/18 12/45+84/18 12/45+28/54 60/45+28/18 12/45+28/90 84/45+28/18