7/3-9/1=
3,4+7,6=
59/9-8=
19/6+5,5=

7/3 - 9/1 = 7/3 - 27/3 = -20/3 = -6 2/33,4 + 7,6 = 1159/9 - 8 = 59/9 - 72/9 = -13/9 = -1 4/919/6 + 5,5 = 19/6 + 11/2 = 19/6 + 33/6 = 52/6 = 8 2/3