Add 10/20 and 12/18
10/20 + 12/18 is 7/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
10/20 = 10 × 9/20 × 9 = 90/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
12/18 = 12 × 10/18 × 10 = 120/180 - Add the two like fractions:
90/180 + 120/180 = 90 + 120/180 = 210/180 - 210/180 simplified gives 7/6
- So, 10/20 + 12/18 = 7/6
In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+24/18 10/40+12/18 10/20+12/36 30/20+12/18 10/20+36/18 10/60+12/18 10/20+12/54 50/20+12/18 10/20+60/18 10/20+12/90 70/20+12/18 10/20+84/18