Question

find five rational number between 1 and 2.

Answer 1

Step-by-step explanation:

There are infinite. (9 rational numbers) lie between 1 and 2. 1.1, 1.2, 1.3, 1.4, and 1.5 . i.e. 11/10, 12/10, 13/10, 14/10, and 15/10 .

Answer 2

$\sf \underline \red{Solution:}$

We know, one rational number between two numbers m and n = (m+n)/2

$\sf \underline{To \: find: }$

5 rational numbers between 1 and 2

Step 1: Rational number between 1 and 2

= (1+2)/2

= 3/2

Step 2: Rational number between 1 and 3/2

= (1+3/2)/2

= 5/4

Step 3: Rational number between 1 and 5/4

= (1+5/4)/2

= 9/8

Step 4: Rational number between 3/2 and 2

= 1/2 [(3/2) + 2)]

= 7/4

Step 5: Rational number between 7/4 and 2

= 1/2 [7/4 + 2]

= 15/8

Arrange all the results: 1 < 9/8 < 5/4 < 3/2 < 7/4 < 15/8 < 2

$\fbox \blue{Therefore required integers are 9/8, 5/4, 3/2, 7/4, 15/8}$