Odpowiedź :
Cześć ;-)
Obliczenia
[tex]1\frac{1}{12} \ l+2\frac{1}{3} \ l+1\frac{1}{4} \ l=1\frac{1}{12} \ l+2\frac{4}{12} \ l+1\frac{3}{12} \ l=4\frac{8}{12} \ l=4\frac{2}{3} \ l\\\\4\frac{2}{3} \ l\cdot\frac{2}{3} \ kg/l=\frac{14}{3}\cdot\frac{2}{3} \ kg=\frac{28}{9} \ kg=\underline{3\frac{1}{9} \ kg}[/tex]
Odp. Łączna waga oliwy ze wszystkich trzech pojemników to 3 ¹/₉ kg.
Pozdrawiam!
Odpowiedź:
[tex]1\frac{1}{12}+2\frac{1}{3} +1\frac{1}{4} =1\frac{1}{12} +2\frac{4}{12} +1\frac{3}{12} =4 \frac{8}{12} = 4\frac{2}{3}[/tex]
[tex]1 litr=\frac{2}{3} kg[/tex]
[tex]4 litry = \frac{8}{3} kg =2\frac{2}{3} kg[/tex]
[tex]\frac{3}{3} litra=\frac{2}{3} kg =\frac{6}{9} kg[/tex]
[tex]\frac{1}{3} litra =\frac{2}{9} kg[/tex]
[tex]\frac{2}{3} litra =\frac{4}{9} kg[/tex]
[tex]2\frac{2}{3} kg+\frac{4}{9}kg =2\frac{6}{9}kg +\frac{4}{9}kg =2\frac{10}{9}kg =3\frac{1}{9} kg[/tex]