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Maths-

General

Easy

Question

The product of two rational numbers is $13 over 5$ . If one of the number is $fraction numerator negative 3 over denominator 4 end fraction$ . Find the other number.

hint Hint:

Divide the given rational number by the result.

The correct answer is: -52/15

Given rational number = $fraction numerator negative 3 over denominator 4 end fraction$ and let the other rational number be
On multiplication, we get the result to be $13 over 5$
That is, we have $fraction numerator negative 3 over denominator 4 end fraction x equals 13 over 5$
On dividing both sides by $fraction numerator negative 3 over denominator 4 end fraction$ ,
we get $x equals 13 over 5 divided by fraction numerator negative 3 over denominator 4 end fraction$
$not stretchy rightwards double arrow x equals 13 over 5 cross times fraction numerator negative 4 over denominator 3 end fraction equals fraction numerator negative 52 over denominator 15 end fraction$
$not stretchy rightwards double arrow x equals fraction numerator negative 52 over denominator 15 end fraction$

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