Add 21/9 and 27/56
1st number: 2 3/9, 2nd number: 27/56
21/9 + 27/56 is 473/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 9 × 56 = 504,
21/9 = 21 × 56/9 × 56 = 1176/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
27/56 = 27 × 9/56 × 9 = 243/504 - Add the two like fractions:
1176/504 + 243/504 = 1176 + 243/504 = 1419/504 - 1419/504 simplified gives 473/168
- So, 21/9 + 27/56 = 473/168
In mixed form: 2137/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9+27/56 21/9+54/56 21/18+27/56 63/9+27/56 21/9+81/56 21/27+27/56 21/45+27/56 21/63+27/56