Answers

Add 14/84 and 45/81

14/84 + 45/81 is 13/18.

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,
   14/84 = 14 × 27/84 × 27 = 378/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   45/81 = 45 × 28/81 × 28 = 1260/2268
4. Add the two like fractions:
   378/2268 + 1260/2268 = 378 + 1260/2268 = 1638/2268
5. 1638/2268 simplified gives 13/18
6. So, 14/84 + 45/81 = 13/18

MathStep (Works offline)

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

Related: ²⁸/₈₄+⁴⁵/₈₁ ¹⁴/₈₄+⁹⁰/₈₁ ⁴²/₈₄+⁴⁵/₈₁ ⁷⁰/₈₄+⁴⁵/₈₁ ⁹⁸/₈₄+⁴⁵/₈₁

Add Fractions Calculator