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b) -4⅗:0,26 - 1,75 :(-¼)+3⅞: (-125)=(-46/100)*(100/26)-7-0,031=
=-24000/13000-7031/1000=(-24000-13*7031)/13000=115403/13000
c)
3+2½*0,3..............4+0,1*10
______________*_____________=
3¾:(4,8-3*0,6).........1,65*5
licznik=(3+3/4)*5=(15/4)
mianownik=((15/4)*(1/3))*35/4=(5*35/4*4)
Osiągamy ułamek piętrowy:
15/4
______=(3*4)/35=12/35
175/16