Add 36/3 and 21/8
1st number: 12 0/3, 2nd number: 2 5/8
36/3 + 21/8 is 117/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
36/3 = 36 × 8/3 × 8 = 288/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Add the two like fractions:
288/24 + 63/24 = 288 + 63/24 = 351/24 - 351/24 simplified gives 117/8
- So, 36/3 + 21/8 = 117/8
In mixed form: 145/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/3+21/8 36/3+42/8 36/6+21/8 36/3+21/16 36/3+63/8 36/9+21/8 36/3+21/24 36/15+21/8 36/3+21/40 36/21+21/8 36/3+21/56