Proszę, dam najkę, mam nadzieje, że dacie też obliczenia, a nie sam wynik, z góry dzięki ;)
(5/6+1/3):(2 i 2/3-1,75)=(5/6+2/6):(2 i 2/3-1 i 3/4)=7/6:(2 i 8/12-1 i 9/12)=
=7/6:11/12=7/6·12/11=14/11=1 i 3/11
1 i 7/12+1 i 5/6-1/2:2/3=1 i 7/12+1 i 10/12-1/2·3/2=3 i 5/12-3/4=3 i 5/12-9/12=
= 2 i 8/12=2 i 2/3
2 i 1/7·1,6·2 i 1/3=15/7·8/5·7/3=8
(17/40-0,2):1 3/5=(17/40-8/40):8/5=9/40·5/8=9/64
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(5/6+1/3):(2 i 2/3-1,75)=(5/6+2/6):(2 i 2/3-1 i 3/4)=7/6:(2 i 8/12-1 i 9/12)=
=7/6:11/12=7/6·12/11=14/11=1 i 3/11
1 i 7/12+1 i 5/6-1/2:2/3=1 i 7/12+1 i 10/12-1/2·3/2=3 i 5/12-3/4=3 i 5/12-9/12=
= 2 i 8/12=2 i 2/3
2 i 1/7·1,6·2 i 1/3=15/7·8/5·7/3=8
(17/40-0,2):1 3/5=(17/40-8/40):8/5=9/40·5/8=9/64
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