50/64 as a Decimal 0.78125 50/64 = 0.78125 = 78.125% Copy 50/64 = 0.78125 = 78.125%. Simplified: 25/32. Formula Used50 ÷ 64 = 0.78125 Frequently Asked Questions What is 50/64 as a decimal?0.78125.What is 50/64 as a percentage?78.125%.