Add 16/36 and 21/12
1st number: 16/36, 2nd number: 1 9/12
16/36 + 21/12 is 79/36.
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,
16/36 = 16 × 1/36 × 1 = 16/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
21/12 = 21 × 3/12 × 3 = 63/36 - Add the two like fractions:
16/36 + 63/36 = 16 + 63/36 = 79/36 - So, 16/36 + 21/12 = 79/36
In mixed form: 27/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/36+21/12 16/36+42/12 16/72+21/12 16/36+21/24 48/36+21/12 16/36+63/12 16/36+21/36 80/36+21/12 16/36+21/60 16/36+21/84