what is a rational number that is between 5.2 and 5.5. what is a irrational number that is between 5.2 and 5.5.

Mathematics · Middle School · Tue Nov 03 2020

Answered on

Rational Numbers : Rational numbers are those numbers that can be represented in the form of p/q where q 0 .

two examples of rational number between 5.2 and 5.5 are 5.3 and 5.4

5.3 = 53/10  is p/q form where p and q are integers and q ≠ 0.

So, 5.3 is a rational number.

5.4 = 54/10 = 27/5  is p/q form where p and q are integers and q ≠ 0.

Hence, 5.4 is also a Rational number.

Let x be any number which is irrational between 5.2 and 5.5

5.2  < x  < 5.5

=> (52/10)  <  x < 55/10

=> 52²/100 < x²  < 55²/100

=> 2704/100 < x² < 3025/100

 

x²= 3000/100       ( x² can be any integer or non integer value between 2704/100 and 3025/100 except 53²/100 =2809/100   and  54² = 1916/100)

x= √30   is an irrational number between 5.2 and 5.5 

x  ≈ 5.48

Another example can be

x= √29

x  ≈ 5.39