Add 8/4 and 21/36
1st number: 2 0/4, 2nd number: 21/36
8/4 + 21/36 is 31/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
8/4 = 8 × 9/4 × 9 = 72/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Add the two like fractions:
72/36 + 21/36 = 72 + 21/36 = 93/36 - 93/36 simplified gives 31/12
- So, 8/4 + 21/36 = 31/12
In mixed form: 27/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4+21/36 8/4+42/36 8/4+21/72 24/4+21/36 8/4+63/36 8/12+21/36 40/4+21/36 8/20+21/36 56/4+21/36 8/28+21/36