The product of two rational numbers is . If one of the numbers is , find the other.

It is given that the product of two rational numbers is .

If one of the number is - we have to find the other number.

So, the other number is obtained by dividing the product by the given number.

Therefore,

Other number =  = (8 × 15)/(9 × 4) = (2 × 5)/3 = 10/3