Freddie Fast can make 6 4/5 chairs per hour on a furniture assembly line. Warren Weary makes 4 1/2 chairs per hour. In a 10-hour shift, how many more chairs does freddie make than warren? and if i may i would also like a small explanatation please i just done get it and thank you for your help
6 4/5 * 10 = 68
4 1/2 * 10 = 45
68 - 45 = ?