Zad. 2
[tex]\frac{15}8 = 1\frac78 > 1\frac58 - tak\\\frac4{21} < \frac15 - tak\\4\frac6{28} = 4\frac3{14} > 4\frac3{14} - nie\\\frac{28}{27}=1\frac1{27} > \frac89 - tak[/tex]
Zad. 6
[tex]1\frac45*7=\frac95*7=\frac{63}5=12\frac35[/tex]
Odp. Rodzina antka zjada 12,6 bochenka chleba w ciagu tygodnia.