Hellomyfriends15 1) 6 1/4 - 4 1/8 = 25/4 - 33/8 = 50/8-33/8 = 17/8
2) 17/8*4 =17/2
3) 3 1/3 : 2 1/2 = 10/3 : 5/2 = 10/3*2/5= 4/3
4) 17/2+4/3 = 51/6+8/6 = 59/6 = 9 5/6