4/9 as a Decimal 0.44444444 4/9 = 0.44444444 = 44.444444% Copy 4/9 = 0.44444444 = 44.444444%. Formula Used4 ÷ 9 = 0.44444444 Frequently Asked Questions What is 4/9 as a decimal?0.44444444.What is 4/9 as a percentage?44.444444%.