Add 5/18 and 28/45
5/18 + 28/45 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
5/18 = 5 × 5/18 × 5 = 25/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
28/45 = 28 × 2/45 × 2 = 56/90 - Add the two like fractions:
25/90 + 56/90 = 25 + 56/90 = 81/90 - 81/90 simplified gives 9/10
- So, 5/18 + 28/45 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+28/45 5/18+56/45 5/36+28/45 5/18+28/90 15/18+28/45 5/18+84/45 5/54+28/45 25/18+28/45 5/90+28/45 35/18+28/45