12/32 as a Decimal 0.375 12/32 = 0.375 = 37.5% Copy 12/32 = 0.375 = 37.5%. Simplified: 3/8. Formula Used12 ÷ 32 = 0.375 Frequently Asked Questions What is 12/32 as a decimal?0.375.What is 12/32 as a percentage?37.5%.