34/64 as a Decimal 0.53125 34/64 = 0.53125 = 53.125% Copy 34/64 = 0.53125 = 53.125%. Simplified: 17/32. Formula Used34 ÷ 64 = 0.53125 Frequently Asked Questions What is 34/64 as a decimal?0.53125.What is 34/64 as a percentage?53.125%.