Add 4/56 and 21/18
1st number: 4/56, 2nd number: 1 3/18
4/56 + 21/18 is 26/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
4/56 = 4 × 9/56 × 9 = 36/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
21/18 = 21 × 28/18 × 28 = 588/504 - Add the two like fractions:
36/504 + 588/504 = 36 + 588/504 = 624/504 - 624/504 simplified gives 26/21
- So, 4/56 + 21/18 = 26/21
In mixed form: 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/56+21/18 4/56+42/18 4/56+21/36 12/56+21/18 4/56+63/18 4/56+21/54 20/56+21/18 4/56+21/90 28/56+21/18