Add 20/36 and 21/6
1st number: 20/36, 2nd number: 3 3/6
20/36 + 21/6 is 73/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 6 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
20/36 = 20 × 1/36 × 1 = 20/36 - Likewise, for the 2nd fraction, since 6 × 6 = 36,
21/6 = 21 × 6/6 × 6 = 126/36 - Add the two like fractions:
20/36 + 126/36 = 20 + 126/36 = 146/36 - 146/36 simplified gives 73/18
- So, 20/36 + 21/6 = 73/18
In mixed form: 41/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36+21/6 20/36+42/6 20/72+21/6 20/36+21/12 60/36+21/6 20/36+63/6 20/36+21/18 20/36+21/30 20/36+21/42