Question

Using each of the integers 13, 0, −18, 8 only once, write any four possible rational numbers.

Answer 1

Any number that can be expressed in the form of $\frac{p}{q}$, where p and q are integers and q ≠ 0,is called a rational number.
The four rational numbers formed using the digits 13, 0, −18 and 8 only once are $\frac{0}{13},\frac{-18}{13},\frac{-18}{8},\frac{0}{18}$.