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The product of two rational numbers is 15. If one of the numbers is $-10$, find the other.
Given:
The product of two rational numbers is 15.
One of the numbers is $-10$.
To do:
We have to find the other number.
Solution:
Let the other number be $x$.
This implies,
$-10\times x=15$
$x=15\div-10$
$x=\frac{15}{-10}$
$x=\frac{-3}{2}$
Therefore, the other number is $\frac{-3}{2}$.
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