2/10 as a Decimal 0.2 2/10 = 0.2 = 20% Copy 2/10 = 0.2 = 20%. Simplified: 1/5. Formula Used2 ÷ 10 = 0.2 Frequently Asked Questions What is 2/10 as a decimal?0.2.What is 2/10 as a percentage?20%.