Question

find the average of rational numbers 4/5; 2/3and 5/6

Answer 1

Their sum
$= \frac{4 }{5} + \frac{2}{3} + \frac{5}{6} \\ = \frac{24 + 20 + 25}{30} \\ = \frac{69}{30}$
Average =
$= \frac{ \frac{69 }{30} }{3} \\ = \frac{23}{30}$

Answer 2

Answer:

$\text{The average is }\frac{23}{30}$

Step-by-step explanation:

Given the rational numbers

$\frac{4}{5}, \frac{2}{3}, \frac{5}{6}$

we have to find the average of above rational numbers.

Central value of the numbers is called average value.

Average value is calculated by adding the numbers divided by total count of numbers.

$\text{Average value = }\frac{\frac{4}{5}+\frac{2}{3}+\frac{5}{6}}{3}$

$=\frac{\frac{24+20+25}{30}}{3}=\frac{\frac{69}{30}}{3}=\frac{23}{30}=0.77$

$\text{Hence, the average is }\frac{23}{30}$