Add 3/20 and 84/18
1st number: 3/20, 2nd number: 4 12/18
3/20 + 84/18 is 289/60.
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,
3/20 = 3 × 9/20 × 9 = 27/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
84/18 = 84 × 10/18 × 10 = 840/180 - Add the two like fractions:
27/180 + 840/180 = 27 + 840/180 = 867/180 - 867/180 simplified gives 289/60
- So, 3/20 + 84/18 = 289/60
In mixed form: 449/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+84/18 3/40+84/18 3/20+84/36 9/20+84/18 3/60+84/18 3/20+84/54 15/20+84/18 3/20+84/90 21/20+84/18