Add 21/56 and 7/3
1st number: 21/56, 2nd number: 2 1/3
21/56 + 7/3 is 65/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 3 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
21/56 = 21 × 3/56 × 3 = 63/168 - Likewise, for the 2nd fraction, since 3 × 56 = 168,
7/3 = 7 × 56/3 × 56 = 392/168 - Add the two like fractions:
63/168 + 392/168 = 63 + 392/168 = 455/168 - 455/168 simplified gives 65/24
- So, 21/56 + 7/3 = 65/24
In mixed form: 217/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56+7/3 21/56+14/3 21/56+7/6 63/56+7/3 21/56+21/3 21/56+7/9 21/56+35/3 21/56+7/15 21/56+49/3 21/56+7/21