Matematyka 1 gimnazjum zadanie 57 strona 51 przyklad c 3+2 1/2x0,3 x 4+0,1x10 ................ .............. = 3 3/4:(4,8-3x0,6) 1,6x5
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3+2 1/2*0,3 4+0,1*10 3+5/2*3/10 4+1
_______________ *___________=______________* ________=
3 3/4:(4,8-3*0,6) 1,6*5 15/4:(4,8-1,8) 8
3 3/4:(15/4*1/3)*4/8=3 3/4:5/4*5/8=15/4*4/5*5/8=15/8=1 7/8