Add 81/6 and 16/20
1st number: 13 3/6, 2nd number: 16/20
81/6 + 16/20 is 143/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
81/6 = 81 × 10/6 × 10 = 810/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
16/20 = 16 × 3/20 × 3 = 48/60 - Add the two like fractions:
810/60 + 48/60 = 810 + 48/60 = 858/60 - 858/60 simplified gives 143/10
- So, 81/6 + 16/20 = 143/10
In mixed form: 143/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6+32/20 81/12+16/20 81/6+16/40 81/6+48/20 81/18+16/20 81/6+16/60 81/6+80/20 81/30+16/20 81/42+16/20