Add 42/20 and 6/9
1st number: 2 2/20, 2nd number: 6/9
42/20 + 6/9 is 83/30.
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,
42/20 = 42 × 9/20 × 9 = 378/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
6/9 = 6 × 20/9 × 20 = 120/180 - Add the two like fractions:
378/180 + 120/180 = 378 + 120/180 = 498/180 - 498/180 simplified gives 83/30
- So, 42/20 + 6/9 = 83/30
In mixed form: 223/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+6/9 42/20+12/9 42/40+6/9 42/20+6/18 42/20+18/9 42/60+6/9 42/20+6/27 42/20+30/9 42/20+6/45 42/20+42/9 42/20+6/63