Which of the following is rational?

3•π

2/3 + 9.26

45 + 36

14.3+5.78765239

2/3 + 9.26 and 45+36

Step-by-step explanation:

Identify the expressions that can not be related with natural numbers (integers). or those numbers with a huge amount of non repetitive decimals.

Thus

The first one, by having π (a transcendental number) the result is still an irrational number

The second and the third is the sum of rational numbers, giving a rational number

The fourth one, has a rational number (14.3) but the other doesn't look like a rational number by having that huge amount of decimals, without an specific sequence.