Add 16/20 and 3/18
16/20 + 3/18 is 29/30.
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,
16/20 = 16 × 9/20 × 9 = 144/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
3/18 = 3 × 10/18 × 10 = 30/180 - Add the two like fractions:
144/180 + 30/180 = 144 + 30/180 = 174/180 - 174/180 simplified gives 29/30
- So, 16/20 + 3/18 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+3/18 16/20+6/18 16/40+3/18 16/20+3/36 48/20+3/18 16/20+9/18 16/60+3/18 16/20+3/54 80/20+3/18 16/20+15/18 16/20+3/90 16/20+21/18