Add 21/36 and 9/6
1st number: 21/36, 2nd number: 1 3/6
21/36 + 9/6 is 25/12.
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,
21/36 = 21 × 1/36 × 1 = 21/36 - Likewise, for the 2nd fraction, since 6 × 6 = 36,
9/6 = 9 × 6/6 × 6 = 54/36 - Add the two like fractions:
21/36 + 54/36 = 21 + 54/36 = 75/36 - 75/36 simplified gives 25/12
- So, 21/36 + 9/6 = 25/12
In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36+9/6 21/36+18/6 21/72+9/6 21/36+9/12 63/36+9/6 21/36+27/6 21/36+9/18 21/36+45/6 21/36+9/30 21/36+63/6 21/36+9/42