Question

Oblicz i wpisz wynik :

-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 = -1 8/10 * 2/3 = -18/10 * 2/3 = - 1 1/5

- 4,8 - 9,1/3 (dziewieć i jedna trzecia) = - 4 8/10 - 9 1/3 = -48/10 - 28/3 = -144/30 - 280/30 = - 424/30 = - 14  4/30
-(-3,7/9) : 1,7 = 34/9 : 1 7/10 = 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 * - 2/1)= 4/27
-(-3/11 * 2,4/9) = -( -3/11 * 22/9) = 2/3