Add 5/18 and 3/45
5/18 + 3/45 is 31/90.
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,
3/45 = 3 × 2/45 × 2 = 6/90 - Add the two like fractions:
25/90 + 6/90 = 25 + 6/90 = 31/90 - So, 5/18 + 3/45 = 31/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+3/45 5/18+6/45 5/36+3/45 5/18+3/90 15/18+3/45 5/18+9/45 5/54+3/45 25/18+3/45 5/18+15/45 5/90+3/45 35/18+3/45 5/18+21/45