Question

Using each of the integers 5, −7, 10 only once, write any four 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 5, −7, and 10 only once are $\frac{5}{10},\frac{10}{5},\frac{-7}{5},\frac{-7}{10}$.