Question

The product of two decimals is 42.987. If one of them is 12.46, find the other.

Answer 1

One decimal is 12.46.

Let the other decimal be x.

According to the question:

12.46 $\times$ x = 42.987
$$\begin{gathered} x=\frac{42.987}{12.46} \\ =\frac{42987\times 100}{1246\times 1000} \\ =\frac{42987}{12460} \\ =3.45 \end{gathered}$$

Thus, the other decimal is 3.45.