(3/5) - (8/6) + (3/2) x (4/3)
(-2/3) x (-4/5) : (-3/6) + (3/5)
(-4/5) x (-2/3) : (2/6) - (1/2)
(4/44) + (2/11) x (3/2) - (8/22)
(4/5) x (3/4) : (3/2)
(2/4) + (3/8) x (7/2) : (4/3) - (3/4)
-8 x (2/4) : ((-3/2) + (1/2)) x (3/2) - (3/2)
(3/4) : (2/5) x (-2/3)
-5/4
13/32
19/15
18/4
2/5
0
33/30
-21/45
