Add 18/20 and 63/3
1st number: 18/20, 2nd number: 21 0/3
18/20 + 63/3 is 219/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
63/3 = 63 × 20/3 × 20 = 1260/60 - Add the two like fractions:
54/60 + 1260/60 = 54 + 1260/60 = 1314/60 - 1314/60 simplified gives 219/10
- So, 18/20 + 63/3 = 219/10
In mixed form: 219/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20+63/3 18/40+63/3 18/20+63/6 54/20+63/3 18/60+63/3 18/20+63/9 90/20+63/3 18/20+63/15 18/20+63/21