Question

-1,8 * 2/3 = ....

- 4,8 - 9,1/3 (dziewieć i jedna trzecia) = ...
-(-3,7/9) : 1,7 =....
-6, 3/4 -(-7,2/3) = ...
-(2/27 : ( -0,5)) =...
-(-3/11 * 2,4/9) =....

Daję naj :)

Answer 1

-1,8 * 2/3 =
= -18/10 * 2/3 = 
= -6/5

- 4,8 - 9,1/3 (dziewieć i jedna trzecia) = 
= -48/10 - 28/3 = 
= - 144/30 - 280/30 = 
= - 424/30
= 14 i 4/30

-(-3,7/9) : 1,7 =
= 34/9 : 17/10 = 
= 34/9 * 10/17 = 
= 20/9 = 
= 2 2/9

-6, 3/4 -(-7,2/3) =
= - 27/4 + 23/3 = 
= -81/12 + 92/12 = 
= 11/12

-(2/27 : ( -0,5)) =
= (-2/27 : (-1/2) = 
= -2/27 * (-2) = 
= 4/27

-(-3/11 * 2,4/9) =
= 3/11 * 22/9 = 
= 2/3