2/7 masy 14kg to
2/7*14= 28/7=4
3/5 kwoty 60 zł to
3/5*60=36
3/5 objętości 30 litrów to
3/5*30=18
2/7 liczby 28 to
2/7*28=8
1/3 liczby 3 3/4 to
1/3*3 3/4= 1,25
1 1/7 liczby 2 1/4 to
[tex]\frac{8}{7} *\frac{9}{4} =\frac{72}{28}=2\frac{16}{28} =2\frac{8}{14} =2\frac{4}{7}[/tex]
