75/100 as a Decimal 0.75 75/100 = 0.75 = 75% Copy 75/100 = 0.75 = 75%. Simplified: 3/4. Formula Used75 ÷ 100 = 0.75 Frequently Asked Questions What is 75/100 as a decimal?0.75.What is 75/100 as a percentage?75%.