A fraction \(\frac{a}{b}\) means a ÷ b. Convert to a decimal.

• Simplify: \(\frac{21}{75} = \frac{7}{25}\)
• Convert \(\frac{7}{25}\) to denominator 100: multiply by \(\frac{4}{4}\)
• \(\frac{7 \times 4}{25 \times 4} = \frac{28}{100}\)
• \(\frac{28}{100} = 0.28\)

Final Answer: 0.28