PILNE!!!!!!!!!!!!!!!!!!!!! wykonaj działania: 1)6,5:(2i1/4*6-0,5)= 2)5/7*4,2-(1i1/4-0,50)= 3)(5-1i1/2):(2i3/8-1,75)= 4)3i3/4*0,8+2i2/3*0,3= 5)4i1/2-2,4:2i2/3+1,4= PODAJ WSZYSTKIE OBLICZENIA!!!!
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1)6,5:(2i1/4*6-0,5)=6,5:(2,25*6-0,5)=6,5:(13,5-0,5)=6,5:13=0,5=1/2
2)5/7*4,2-(1i1/4-0,50)=5/7*21/5-(5/4-1/2)=3-(5/4-2/4)=3-3/4=
=12/4-3/4=9/4=2 1/4
3)(5-1i1/2):(2i3/8-1,75)=(5-1,5):(2,375-1,75)=
= 3,5:0,625=5,6=5 6/10=5 3/5
4)3i3/4*0,8+2i2/3*0,3=15/4*4/5+8/3*3/10=3+4/5=3+ 0,8=3,8
5)4i1/2-2,4:2i2/3+1,4=9/2-12/5:8/3+7/5=
=9/2-12/5*3/8+7/5=9/2-36/40+7/5=9/2-18/20+7/5=
=9/2-9/10+7/5=45/10-9/10+14/10= 50/10=5
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