Add 21/56 and 9/3
1st number: 21/56, 2nd number: 3 0/3
21/56 + 9/3 is 27/8.
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,
9/3 = 9 × 56/3 × 56 = 504/168 - Add the two like fractions:
63/168 + 504/168 = 63 + 504/168 = 567/168 - 567/168 simplified gives 27/8
- So, 21/56 + 9/3 = 27/8
In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56+9/3 21/56+18/3 21/56+9/6 63/56+9/3 21/56+27/3 21/56+45/3 21/56+9/15 21/56+63/3 21/56+9/21