Oblicz... (Razem z tym zamienianiem ułamka itp.) 3,2 + [latex] frac{1}{4} [/latex] = ... . .... . .... 0,7 + [latex] 1frac{1}{2} [/latex] = ... . .... . .... [latex] 1frac{3}{5} [/latex] - 0,9 = .... . ... . .... . ... [latex] 1frac{1}{8} [/latex] × 0

a)3,2+[latex] frac{1}{4} [/latex]=3,2+0,25=3,45 b)0,7+1,5=2,2 c)1[latex] frac{3}{5} [/latex]-0,9=[latex] frac{8}{5}- frac{9}{10}= frac{16}{10}- frac{9}{10}= frac{7}{10}=0,7 [/latex] d)1[latex] frac{1}{8} *0,2= frac{9}{8} * frac{2}{10} = frac{9}{40} [/latex] e)5,3-0,2=5,1 f)[latex] frac{2}{3} *0,4= frac{2}{3}* frac{4}{10} = frac{4}{15} [/latex] g)[latex] frac{7}{8} -0,6= frac{7}{8} - frac{6}{10} = frac{35}{40} - frac{24}{40}= frac{11}{40} [/latex] h)3,2/[latex] frac{2}{7} [/latex]=[latex] frac{32}{10}* frac{7}{2}= frac{56}{5}=11,2 [/latex] i)[latex] frac{4}{8}+0,12= frac{4}{8} + frac{12}{100}= frac{500}{1000}+ frac{120}{1000}= frac{620}{1000}=0,62 [/latex] j)[latex] frac{3}{11} /0,6= frac{3}{11}* frac{10}{6}= frac{30}{66}= frac{10}{22} [/latex]

[latex]3,2+ frac{1}{4}=3 frac{2}{10}+ frac{1}{4}=3 frac{4}{20}+ frac{5}{20}=3 frac{9}{20}=3 frac{45}{100}=3,45\\ 0,7+1 frac{1}{2}= frac{7}{10}+1 frac{1}{2}=frac{7}{10}+1 frac{5}{10}=1frac{12}{10}=2frac{2}{10}=2,2 qquad (lub 2frac{1}{5})\\ 1frac{3}{5} -0,9= 1frac{3}{5} - frac{9}{10}= 1frac{6}{10} - frac{9}{10}=frac{16}{10} - frac{9}{10}=frac{7}{10}=0,7\\ 1frac{1}{8} *0,2= 1frac{1}{8} * frac{2}{10} = frac{9}{8} * frac{1}{5}= frac{9}{40} = frac{225}{1000} = 0,225[/latex] [latex]5,3- frac{1}{5}=5 frac{3}{10}- frac{1}{5}=5 frac{3}{10}- frac{2}{10}=5 frac{1}{10}=5,1 \\ frac{2}{3}*0,4= frac{2}{3}* frac{4}{10}= frac{2}{3}* frac{2}{5}= frac{4}{15} [=0,2(6)]\\ frac{7}{8}-0,6=frac{7}{8}-frac{6}{10}=frac{35}{40}-frac{24}{40}=frac{11}{40}=frac{275}{1000}=0,275 \\ 3,2:frac{2}{7}=3frac{2}{10}:frac{2}{7}=3frac{1}{5}*frac{7}{2}=frac{16}{5}*frac{7}{2}=frac{8}{5}*frac{7}{1}=frac{56}{5}=11frac{1}{5}=11,2[/latex] [latex]frac{4}{8}+0,12=frac{4}{8}+frac{12}{100}=frac{1}{2}+frac{3}{25}=frac{25}{50}+frac{6}{50}=frac{31}{50}=frac{62}{100}=0,62\\ frac{3}{11}:0,6=frac{3}{11}:frac{6}{10}=frac{3}{11}:frac{3}{5}=frac{3}{11}*frac{5}{3}=frac{1}{11}*frac{5}{1}=frac{5}{11} [=0,(45)][/latex]