Add 1/20 and 10/9
1st number: 1/20, 2nd number: 1 1/9
1/20 + 10/9 is 209/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
10/9 = 10 × 20/9 × 20 = 200/180 - Add the two like fractions:
9/180 + 200/180 = 9 + 200/180 = 209/180 - So, 1/20 + 10/9 = 209/180
In mixed form: 129/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+10/9 1/20+20/9 1/40+10/9 1/20+10/18 3/20+10/9 1/20+30/9 1/60+10/9 1/20+10/27 5/20+10/9 1/20+50/9 1/20+10/45 7/20+10/9 1/20+70/9 1/20+10/63