jedna druga + jedna czwarta trzy czwarte -jedna druga 1 cała 1 druga + jedna czwarta 4 całe trzy czwarte - jedna druga 10 całych 3 czwarte - 1 druga 6 i jedna druga + 3 jedna druha

1/2 + 1/4=  = 2/4 + 1/4= = 3/4 3/4 - 1/2= = 3/4 - 2/4= = 1/4 1 i 1/2 + 1/4= = 1 i 2/4 + 1/4= = 1 i 3/4 4 i 3/4 - 1/2= = 4 i 3/4 - 2/4= = 4 i 1/4 10 i 3/4 - 1/2= = 10 i 3/4 - 2/4= = 10 i 1/4 6 i 1/2 + 3 i 1/2= = 9 i 2/2= = 10

[latex] frac{1}{2} [/latex] + [latex] frac{1}{4} [/latex]=[latex] frac{3}{4} [/latex] [latex] frac{3}{4} - frac{1}{2} = frac{3}{4} -frac{2}{4} = frac{1}{4} [/latex] [latex]1 frac{1}{2} + frac{1}{4} = 1 frac{2}{4} + frac{1}{4} = 1 frac{3}{4} [/latex] [latex]4 frac{3}4} - frac{1}{2} = 4 frac{3}{4} - frac{2}{4}=4 frac{1}{4} [/latex] [latex]10 frac{3}{4} - frac{1}{2} =10 frac{3}{4} - frac{2}{4}=10 frac{1}{4} [/latex] [latex]6 frac{1}{2}+3 frac{1}{2} =9 frac{2}{4}=9 frac{1}{2} [/latex] Licze  na naj..