Question

Product of two rational no. is 1 , if one of them is , then the other no. is​

Answer 1

Answer:

Let second number be a According to question => a * 4/5 = 1 => a = 5/4 Second number = 5/4

Step-by-step explanation:

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Answer 2

Answer:

5/4

Step-by-step explanation:

let second number be

according to the question

=a× 4/5 = 1

= a=5/4

second number is 5/4