Rational Number

A rational number is any number that can expressed as a ratio (fraction) of two integers numbers  $\large{ ... , -3, -2, -1, 0, 1, 2, 3, ... }$ .  There is more than one way to write the same ratio of two integers.

• $\large{\; 0=\frac{0}{1} }$
• $\large{\; 0.125=\frac{1}{8} }$
• $\large{\; 1.5=\frac{3}{2} }$
• $\large{\; 0.63=\frac{63}{100} }$
• $\large{\; 4\frac{1}{3}=\frac{13}{3} }$
• $\large{\; 7=\frac{7}{1} }$
• $\large{\; -7=\frac{-7}{1} }$  or  $\large{\frac{7}{-1} }$  or  $\large{ -\frac{7}{1} }$
• $\large{\; 0.\overline{33}=\frac{1}{3}}$