Express the following as a fraction and a decimal number: a) \( 45 \% \) b) \( 2 \% \) c) \( 100 \% \)

To express percentages as fractions and decimal numbers, you simply divide by 100. For \( 45\% \): As a fraction, it is \( \frac{45}{100} \) which simplifies to \( \frac{9}{20} \). As a decimal, it is \( 0.45 \). For \( 2\% \): As a fraction, it is \( \frac{2}{100} \) which simplifies to \( \frac{1}{50} \). As a decimal, it is \( 0.02 \). For \( 100\% \): As a fraction, it is \( \frac{100}{100} \) which equals \( 1 \). As a decimal, it is simply \( 1.00 \).