Add 21/36 and 6/4
1st number: 21/36, 2nd number: 1 2/4
21/36 + 6/4 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 4 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 4 × 9 = 36,
6/4 = 6 × 9/4 × 9 = 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 + 6/4 = 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+6/4 21/36+12/4 21/72+6/4 21/36+6/8 63/36+6/4 21/36+18/4 21/36+6/12 21/36+30/4 21/36+6/20 21/36+42/4 21/36+6/28