Express 9/30 as a percentage.

Express 9/30 as a percentage.

• A. 3%
• B. 10%
• C. 0.3%
• D. 30%

Answer: (D)

Converting a fraction to a percentage means turning the fraction into a decimal and then into a percent. For 9/30, simplify to 3/10, which is 0.3 as a decimal. Multiplying by 100 to convert to a percent gives 30%. Equivalently, (9/30) × 100 = 30%. The other options don’t match: 3% is 0.03, 0.3% is 0.003, and 10% is 0.1, none of which equal 0.3.

Converting a fraction to a percentage means turning the fraction into a decimal and then into a percent. For 9/30, simplify to 3/10, which is 0.3 as a decimal. Multiplying by 100 to convert to a percent gives 30%. Equivalently, (9/30) × 100 = 30%. The other options don’t match: 3% is 0.03, 0.3% is 0.003, and 10% is 0.1, none of which equal 0.3.