20/32 as a Decimal 0.625 20/32 = 0.625 = 62.5% Copy 20/32 = 0.625 = 62.5%. Simplified: 5/8. Formula Used20 ÷ 32 = 0.625 Frequently Asked Questions What is 20/32 as a decimal?0.625.What is 20/32 as a percentage?62.5%.