Add 2/18 and 20/15
1st number: 2/18, 2nd number: 1 5/15
2/18 + 20/15 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
2/18 = 2 × 5/18 × 5 = 10/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
20/15 = 20 × 6/15 × 6 = 120/90 - Add the two like fractions:
10/90 + 120/90 = 10 + 120/90 = 130/90 - 130/90 simplified gives 13/9
- So, 2/18 + 20/15 = 13/9
In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18+20/15 2/18+40/15 2/36+20/15 2/18+20/30 6/18+20/15 2/18+60/15 2/54+20/15 2/18+20/45 10/18+20/15 2/90+20/15 2/18+20/75 14/18+20/15