Question

Oblicz
a) -1 1/4 * (- 4) =
b) - 6 2/3 : 2 =
c) - 0,2 * ( -0,2)=
d) -3 1/3 * 1/3 +
f) 1/3 i 2 u góry * ( - 9)=
g) -6 i 2 u góry : 1/2=
h) 3 3/4 : ( - 1.25) i 2 u góry =

prosiła bym o rozpisanie a nie napisane samych wyników ;) ;) :)

Answer 1

A) -1 1/4 * (- 4) = -5/4 * (-4/1) = -5/1 * (-1/1) = 5/1 = 5
b) - 6 2/3 : 2 = -20/3  : 2 = -20/3 x 1/2 = -10/3 x 1 = -10/3 = -3  1/3
c)  - 0,2 * ( -0,2)= -2/10 * (-2/10) = 4/100 = 0,04
d) -3 1/3 * 1/3  = -10/3 * 1/3 = -10/9 = -1  1/9
f) 1/3^2 * ( - 9)= 1/6 * (-9/1) = 1/2 * (-3/1) = -3/2 = -1 1/2
g) -6^2 : 1/2 = -36 x 2/1 = -72
h) 3 3/4 : (-1,25)^2 = 15/4 : [(-1 25/100)*(-1 25/100)]^2 = 15/4 : [(-125/100)*(-125/100)]^2 = 15/4 : [(-5/4)*(-5/4)]^2 = 15/4 : (-25/16)^2 = 15/4 : (-625/256) = 15/4 * (-256/625) = 3/1 * (-64/125) = -192/125 = -1  67/125