1 foot is 12 inches.
80
There are 12 inches in one foot. Therefore, 8 feet 19 inches is equal to 9 feet 7 inches.
There are 12 inches in a foot. So 215 / 12 = 17 feet and 11 inches
There are 12 inches in one foot. Therefore, 66 inches is equal to 66/12 = 5 remainder 6 or 5 feet 6 inches.