Answers

Add 56/84 and 56/81

56/84 + 56/81 is 110/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 81 is 2268
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2268
2. For the 1st fraction, since 84 × 27 = 2268,
   56/84 = 56 × 27/84 × 27 = 1512/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   56/81 = 56 × 28/81 × 28 = 1568/2268
4. Add the two like fractions:
   1512/2268 + 1568/2268 = 1512 + 1568/2268 = 3080/2268
5. 3080/2268 simplified gives 110/81
6. So, 56/84 + 56/81 = 110/81
   In mixed form: 129/81

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

Add Fractions Calculator