Add 16/20 and 45/18
1st number: 16/20, 2nd number: 2 9/18
16/20 + 45/18 is 33/10.
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,
45/18 = 45 × 10/18 × 10 = 450/180 - Add the two like fractions:
144/180 + 450/180 = 144 + 450/180 = 594/180 - 594/180 simplified gives 33/10
- So, 16/20 + 45/18 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+45/18 16/20+90/18 16/40+45/18 16/20+45/36 48/20+45/18 16/60+45/18 16/20+45/54 80/20+45/18 16/20+45/90