3/6 as a Decimal 0.5 3/6 = 0.5 = 50% Copy 3/6 = 0.5 = 50%. Simplified: 1/2. Formula Used3 ÷ 6 = 0.5 Frequently Asked Questions What is 3/6 as a decimal?0.5.What is 3/6 as a percentage?50%.