NEED HELP: has to do with fractions

Question

a man measures a room for a wallpaper border and finds he needs lengths of 10 ft. 6 3/8 in., 14 ft. 9 3/4 in., 6 ft. 5 1/2., and 3 ft. 2 7/8 in. what total length of wallpaper border does he need to purchase?

Answer 1

10 ft. 6 3/8 in., 14 ft. 9 3/4 in., 6 ft. 5 1/2., and 3 ft. 2 7/8 in.

10 ft x 12in/ft = 120 in

120 in + 6 in + 3/8 in = 120 in + 6 in + .375 in = 126.375 in

14 ft. x 12in/ft = 168 in

168 in + 9 in + .75in = 177.75 in

6 ft x 12 in/ft= 72 in

72 in + 5 in + .5 in = 77.5 in

36 in + 2 in + .875 in = 38.875 in

Sum amounts in bold to find answer. You can do it.