A rational number is any number that can be expressed as the quotient or fraction \( \frac{a}{b} \), where \( a \) is an integer and \( b \) is a non-zero integer. Examples of rational numbers include:
- \( \frac{1}{2} \)
- \( -3 \) (which can be written as \( \frac{-3}{1} \))
- \( 0 \) (which can be written as \( \frac{0}{1} \))
- \( 4.75 \) (which can be written as \( \frac{19}{4} \))
If you provide the options you're considering, I can help you identify which of them are rational numbers.