// i / to kreski ułamkowe !
zad. 1. Oblicz
a) 2/3 + 1/5 // 2/5 - 1/2 + (3 2/17 - 4 6/13) * (0,75 - 3/4)
b) 2/3 - [0,8 * 3/(-2)^2 - (-2)^2/5] : (-1 1/2)
c) (1/3 - 1/2) : (5/3 - 5/4) - (0,25 - 3/8 : 0,625)
d) ((-1/2)^2 - (-1/2)^3) : ((-2/3)^2 - (-1/3)^2)
e) 3/5 - (1,4 * 5/14 - 0,9/3^2) : (-1/5)
f) 5 3/4 - 8 1/3 // 1/2 - (2/3)^2 - 2/3 : ( - 4/27)
g) 4/5 : (1/2 - 1/5) - (2/3) - (3/8 - 1 1/3)
h) ((-1 1/2)^2 - (-1 1/3)^2) : 4 1/4
zad.2
Uporządkuj liczby a,b,c, w kolejności rosnącej
a)a= 1 - 0,125 * 1/2 // 7/8 - 8/7
b) 2 3/5 * 4 6/11 * 3 5/13 * (-1/4)
c) 24/11 * 1,5 * 2,75 * (-1 1/3)
Pomóżcie ;*
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Zad. 1.
a) 2/3+1/5 // 2/5-1/2+(3 2/17-4 6/13)*(0,75-3/4)=
=10/15+3/15 // 2/5-1/2+(53/17-58/13)*(3/4-3/4)=
=13/15 // 2/5-1/2+(689/221-986/221)*0=
=13/15 // 2/5-1/2+(-297/221)*0=
= 13/15 // 2/5-1/2+0=
=13/15 // 4/10-5/10+0/10=
=13/15 // -1/10=
=13/15*(-10/1)=
=-26/3=
=-8 2/3