Add 10/18 and 25/20
1st number: 10/18, 2nd number: 1 5/20
10/18 + 25/20 is 65/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
10/18 = 10 × 10/18 × 10 = 100/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
25/20 = 25 × 9/20 × 9 = 225/180 - Add the two like fractions:
100/180 + 225/180 = 100 + 225/180 = 325/180 - 325/180 simplified gives 65/36
- So, 10/18 + 25/20 = 65/36
In mixed form: 129/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18+25/20 10/18+50/20 10/36+25/20 10/18+25/40 30/18+25/20 10/18+75/20 10/54+25/20 10/18+25/60 50/18+25/20 10/90+25/20 70/18+25/20