Add 21/3 and 56/4
1st number: 7 0/3, 2nd number: 14 0/4
21/3 + 56/4 is 21/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
21/3 = 21 × 4/3 × 4 = 84/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
56/4 = 56 × 3/4 × 3 = 168/12 - Add the two like fractions:
84/12 + 168/12 = 84 + 168/12 = 252/12 - 252/12 simplified gives 21/1
- So, 21/3 + 56/4 = 21/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3+56/4 21/6+56/4 21/3+56/8 63/3+56/4 21/9+56/4 21/3+56/12 21/15+56/4 21/3+56/20 21/3+56/28