10/50 as a Decimal 0.2 10/50 = 0.2 = 20% Copy 10/50 = 0.2 = 20%. Simplified: 1/5. Formula Used10 ÷ 50 = 0.2 Frequently Asked Questions What is 10/50 as a decimal?0.2.What is 10/50 as a percentage?20%.