Add 36/12 and 21/8
1st number: 3 0/12, 2nd number: 2 5/8
36/12 + 21/8 is 45/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
36/12 = 36 × 2/12 × 2 = 72/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Add the two like fractions:
72/24 + 63/24 = 72 + 63/24 = 135/24 - 135/24 simplified gives 45/8
- So, 36/12 + 21/8 = 45/8
In mixed form: 55/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12+21/8 36/12+42/8 36/24+21/8 36/12+21/16 36/12+63/8 36/12+21/24 36/60+21/8 36/12+21/40 36/84+21/8 36/12+21/56