1-3/4,1 1/4-3/4,3-3/4,2/1/4-3/4,10-5/1

1 - 3/4 = 1/4 ; 1 1/4 - 3/4 = 1/2 ; 3 - 3/4 = 2 1/4 ; 2 1/4 - 3/4 = 1 1/2 ; 10 - 5/1 = 5

1 - 3/4 = 1/4 1/4 - 3/4 = -2/4 = -1/2 3 - 3/4 = 2 i 1/4 2 : 1/4 - 3/4 = 8 - 3/4 = 7 i 1/4 10 - 5/1 = 10 - 5 = 5