Add 18/12 and 16/20
1st number: 1 6/12, 2nd number: 16/20
18/12 + 16/20 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
16/20 = 16 × 3/20 × 3 = 48/60 - Add the two like fractions:
90/60 + 48/60 = 90 + 48/60 = 138/60 - 138/60 simplified gives 23/10
- So, 18/12 + 16/20 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+16/20 18/12+32/20 18/24+16/20 18/12+16/40 54/12+16/20 18/12+48/20 18/36+16/20 18/12+16/60 90/12+16/20 18/12+80/20 18/60+16/20 18/84+16/20