żeby nie było // i / to są kreski ułamkowe
zad.1 Oblicz
a) 6/11 - 15/45 // 11/3 - 2 1/2 * 2 3/4
b)2 - 8 - 1/2 // 12 + 1/2
c) 1/2 - 1/3 - (1/4 - 1/5)
d) 1 5/8 - ( - 2 2/3 + 0,25)
zad. 2. 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.3
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)
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Zad. 1.
a) 6/11-15/45 // 11/3-2 1/2*2 3/4=
=84/154-165/154 // 11/3-5/2*11/4=
=-81/154 // 11/3-55/8=
=-81/154 // 88/24-165/24=
=-81/154 // -77/24=
=-81/154*(-24/77)=
=1944/11858=
=0,16
b) 2-8-1/2 // 12+1/2=
=2/1-8/1-1/2 // 12/1+1/2=
=4/2-16/2-1/2 // 24/2+1/2=
=-13/2 // 25/2=
=-132*2/25=
=13/25
c) 1/2-1/3-(1/4-1/5)=
=1/2-1/3-(5/20-4/20)=
=1/2-1/3-1/20=
=30/60-20/60-3/60=
=7/60
d) 1 5/8-(-2 2/3+0,25)=
=13/8-(-8/3+1/4)=
=13/8-(-32/12+3/12)=
=13/8-(-29/12)=
=13/8+29/12=
=39/24+58/24=
=97/24=
=4 1/24