5/7 as a Decimal 0.71428571 5/7 = 0.71428571 = 71.428571% Copy 5/7 = 0.71428571 = 71.428571%. Formula Used5 ÷ 7 = 0.71428571 Frequently Asked Questions What is 5/7 as a decimal?0.71428571.What is 5/7 as a percentage?71.428571%.