Add 28/6 and 21/56
1st number: 4 4/6, 2nd number: 21/56
28/6 + 21/56 is 121/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 6 × 28 = 168,
28/6 = 28 × 28/6 × 28 = 784/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
21/56 = 21 × 3/56 × 3 = 63/168 - Add the two like fractions:
784/168 + 63/168 = 784 + 63/168 = 847/168 - 847/168 simplified gives 121/24
- So, 28/6 + 21/56 = 121/24
In mixed form: 51/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/6+21/56 28/6+42/56 28/12+21/56 84/6+21/56 28/6+63/56 28/18+21/56 28/30+21/56 28/42+21/56