35/27:x=-14/9
-9/14=27x/35
-1/2=3x/7
-7/6=x
X=-1 1/6
-21/8:x=39/20
-8x/21=20/39
X=-(20×21/(39×8)
X=-5×7/13×2
X=-35/26
X=-1 9/26
35/27:x=-14/9
-9/14=27x/35
-1/2=3x/7
-7/6=x
X=-1 1/6
-21/8:x=39/20
-8x/21=20/39
X=-(20×21/(39×8)
X=-5×7/13×2
X=-35/26
X=-1 9/26