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andrew11 [14]
1 year ago
12

56. CHALLENGE Let and be two distinct rational numbers. Find the

Mathematics
1 answer:
Katen [24]1 year ago
8 0

The rational number that lies exactly halfway between a/b and c/d on a number line is x = (ad + bc)/2bd or 1/2(a/b + c/d).

<h3>How to calculate the mid-value?</h3>

To calculate the mid-value of two numbers x and y, find the average of these two numbers. I.e., (x + y)/2

Thus, the average of these two numbers is the mid-value between them.

<h3>Calculation:</h3>

It is given that,

a/b and c/d are the two rational numbers on a number line.

Consider the required rational number that lies exactly halfway between a/b and c/d as 'x'.

Then, the mid-value of these two rational numbers is

(a/b + c/d)/2

⇒ (ad + bc)/2bd  ...(i)

To know that the obtained rational number is exactly halfway between a/b and c/d, consider the distance from a/b to x and c/d to x.

So, the distance from a/b to x is - "x - a/b" (x > a/b) and

the distance from x to c/d is - "c/d - x"

From the given condition, the above-obtained distances are equal

⇒ x - a/b = c/d - x

⇒ x + x = a/b + c/d

⇒ 2x = (ad + bc)/bd

⇒ x = (ad + bc)/2bd ...(ii)

From (i) and (ii), it is concluded that the required rational number is

x = (ad + bc)/2bd

Learn more about finding mid-value between two rational numbers here:

brainly.com/question/5556240

#SPJ9

Disclaimer: The given question on the portal was incomplete. Here is the complete question.

Question: CHALLENGE: Let a/b and c/d be two distinct rational numbers. Find the rational number that lies exactly halfway between a/b and c/d on a number line.

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