Add 3/36 and 21/12
1st number: 3/36, 2nd number: 1 9/12
3/36 + 21/12 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
3/36 = 3 × 1/36 × 1 = 3/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
21/12 = 21 × 3/12 × 3 = 63/36 - Add the two like fractions:
3/36 + 63/36 = 3 + 63/36 = 66/36 - 66/36 simplified gives 11/6
- So, 3/36 + 21/12 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/36+21/12 3/36+42/12 3/72+21/12 3/36+21/24 9/36+21/12 3/36+63/12 3/36+21/36 15/36+21/12 3/36+21/60 21/36+21/12 3/36+21/84