Question

Oblicz:
a) - 1 1/2*(2/3)*(- 1 2/5)=
b) - 3 1/5*(-3 1/8)*2/5=
c) - 1/2*(-3/4)*(-2)*(-4)=
d) - 2/3*5/8*(-1 1/2)*(-8/15)=
PROSZĘ DAJĘ NAJ
Trzeba skracać i zamieniać niewłaściwe

Answer 1

a) - 1 1/2*(2/3)*(- 1 2/5)=
= -3/2(2/3) * (-1 2/5) = -1 * (-1 2/5) = 1 2/5
b)
- 3 1/5*(-3 1/8)*2/5=
= -16/5(-25/8) * 2/5 = 2 * 5 * 2/5 = 2 * 2 = 4
c)
- 1/2*(-3/4)*(-2)*(-4)=
= 3/8 * 8 = 3
d)
- 2/3*5/8*(-1 1/2)*(-8/15)=
= -1/3 * 5/4(-3/2)(-8/15) = -5/12 * 3 * 4/15 = -5/4 * 4/15 = -1/3
PROSZĘ DAJĘ NAJ 

Answer 2

A)
- 1 i 1/2*(2/3)*(- 1 i 2/5)=

= - 3/2 * 2/3 * (- 7/5) =

= -1/1 * 1/1 * (-7/5) =

= - 1/1 * (-7/5) =

= 7/5=

= 1 i 2/5




b)
- 3 i 1/5*(-3 i 1/8)*2/5=

= - 16/5 * (-25/8) * 2/5=

= - 2/1 *(-5/1) * 2/5=

= - 2/1 * (-1/1) * 2/1=

=  4/1 =

= 4



c)
- 1/2*(-3/4)*(-2)*(-4)=

= -1/1 * (-3/1) * (-1) * (-1) =

= 3/1=

= 3



d)
- 2/3*5/8*(-1 i 1/2)*(-8/15)=

= -1/3 * 5/4 * (- 3/2) * (- 8/15) =

= - 1/1 * 1/4 * (-1/1) * (-4/3) =

= - 4/12 =

= - 1/3