Add 18/45 and 28/36
18/45 + 28/36 is 53/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
18/45 = 18 × 4/45 × 4 = 72/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
28/36 = 28 × 5/36 × 5 = 140/180 - Add the two like fractions:
72/180 + 140/180 = 72 + 140/180 = 212/180 - 212/180 simplified gives 53/45
- So, 18/45 + 28/36 = 53/45
In mixed form: 18/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+28/36 18/45+56/36 18/90+28/36 18/45+28/72 54/45+28/36 18/45+84/36 90/45+28/36