Convert a percent to a decimal Move the decimal point two places to the left 1. 10% → 10. → 0.10 2. 75% → 75. → 0.75 3. 2.5% → 2.5 → 0.025 Convert a percent to a fraction Divide over 100, then simplify 1. 10% → 10/100 → 1/10 2. 75% → 75/100 → 3/4 3. 2.5% → 2.5/100 → 1/40 Convert a decimal to a percent Move the decimal point two places to the right 1. 0.10 → 10% 2. 0.75 → 75% 3. 0.025 → 2.5% Convert a decimal to a fraction Move the decimal point two places to the right, divide over 100, then simplify 1. 0.10 → 10 → 10/100 → 1/10 2. 0.75 → 75 → 75/100 → 3/4 3. 0.025 → 2.5 → 2.5/100 → 1/40 Convert a fraction to a decimal Interpret the fraction bar to mean "divided by" 1. 1/10 → 0.10 2. 3/4 → 0.75 3. 1/40 → 0.025 Convert a fraction to a percent Interpret the fraction bar to mean "divided by," multiply the result by 100 1. 1/10 → 0.10 → 10% 2. 3/4 → 0.75 → 75% 3. 1/40 → 0.025 → 2.5%