Add 16/9 and 42/20
1st number: 1 7/9, 2nd number: 2 2/20
16/9 + 42/20 is 349/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
16/9 = 16 × 20/9 × 20 = 320/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
42/20 = 42 × 9/20 × 9 = 378/180 - Add the two like fractions:
320/180 + 378/180 = 320 + 378/180 = 698/180 - 698/180 simplified gives 349/90
- So, 16/9 + 42/20 = 349/90
In mixed form: 379/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/9+42/20 16/9+84/20 16/18+42/20 16/9+42/40 48/9+42/20 16/27+42/20 16/9+42/60 80/9+42/20 16/45+42/20 16/63+42/20