Question

(-2x/3y)(-5xy)

(18/11)/(8/33)

(14/3)/(6/15)

Answer 1

(-2x/3y)(-5xy)  Multiplicacion
+ 10x²y / 3y
+ 10x²/3


(18/11)/(8/33)  Division
18.33 =  18.3 = 9.3  = 27
11.8          8      4       4

 
(14/3)/(6/15)  Division
14 .15  = 14.5 = 7.5  = 35
 3. 6          6        3      3

Espero que te sirva, salu2!!!!