24/64 as a Decimal 0.375 24/64 = 0.375 = 37.5% Copy 24/64 = 0.375 = 37.5%. Simplified: 3/8. Formula Used24 ÷ 64 = 0.375 Frequently Asked Questions What is 24/64 as a decimal?0.375.What is 24/64 as a percentage?37.5%.