Odpowiedź :
[tex]2.75+1\frac{1}{3}=\frac{11}{4}+\frac{4}{3}=\frac{33}{12}+\frac{16}{12\frac{}{} }= \frac{49}{12} =4\frac{1}{12}[/tex]
[tex]2.75+1\frac{1}{3}=\frac{11}{4}+\frac{4}{3}=\frac{33}{12}+\frac{16}{12\frac{}{} }= \frac{49}{12} =4\frac{1}{12}[/tex]