Odpowiedź:
3*5 : 6 = 15 : 6 = 2.5
2*2 ¾ =
[tex] \frac{2}{1} \times \frac{11}{4} = \frac{1}{1} \times \frac{11}{2} = \frac{11}{2} = 5 \times \frac{1}{2} [/tex]
