Add 16/20 and 18/9
1st number: 16/20, 2nd number: 2 0/9
16/20 + 18/9 is 14/5.
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,
16/20 = 16 × 9/20 × 9 = 144/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
18/9 = 18 × 20/9 × 20 = 360/180 - Add the two like fractions:
144/180 + 360/180 = 144 + 360/180 = 504/180 - 504/180 simplified gives 14/5
- So, 16/20 + 18/9 = 14/5
In mixed form: 24/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+18/9 16/20+36/9 16/40+18/9 48/20+18/9 16/20+54/9 16/60+18/9 16/20+18/27 80/20+18/9 16/20+90/9 16/20+18/45 16/20+18/63