Add 5/18 and 80/45
1st number: 5/18, 2nd number: 1 35/45
5/18 + 80/45 is 37/18.
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,
80/45 = 80 × 2/45 × 2 = 160/90 - Add the two like fractions:
25/90 + 160/90 = 25 + 160/90 = 185/90 - 185/90 simplified gives 37/18
- So, 5/18 + 80/45 = 37/18
In mixed form: 21/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+80/45 5/36+80/45 5/18+80/90 15/18+80/45 5/54+80/45 25/18+80/45 5/90+80/45 35/18+80/45