There are four and a quarter feet in 51 inches or four feet, three inches.
five feet and four inches............
Four feet, 0 inches.
Are asking how many inches are in 4 feet? If so: 48 inches=4 feet
Three and a half feet = 42 inches.
There are .4 feet in three inches. None. A foot has 12 inches.
48 inches = four feet.