Zadanie 6 z strony 11 Matematyka 7 z plusem Podręcznik. Zadanie w załączniku

[tex]a) 0,4 = \frac{4}{10} = \frac{2}{5} \\\\0,08 = \frac{8}{100} = \frac{4}{50} = \frac{2}{25} \\\\0,15 = \frac{15}{100} = \frac{3}{20} \\\\1,375 = 1\frac{375}{1000} = 1\frac{75}{200} = 1\frac{15}{40} = 1\frac{5}{8} \\\\14,35 = 14\frac{35}{100} = 14\frac{7}{20} \\\\0,84 = \frac{84}{100} = \frac{21}{25}[/tex]

[tex]b) \frac{3}{4} = \frac{75}{100} = 0,75\\\\\frac{5}{8} = \frac{625}{1000} = 0,625\\\\3\frac{1}{2} = 3\frac{50}{100} = 3,50\\\\4\frac{2}{5} = 4\frac{40}{100} = 4,40\\\\1\frac{9}{20} = 1\frac{45}{100} = 1,45\\\\\frac{11}{25} = \frac{44}{100} = 0,44[/tex]

Sawanna1viz Sawanna1viz · Answer 2

Odpowiedź:

ZAD 6

a)

[tex]0,4=\frac{4:2}{10:2}=\frac{2}{5}[/tex]

[tex]0,08=\frac{8:4}{100:4}=\frac{2}{25}[/tex]

[tex]0,15=\frac{15:5}{100:5}=\frac{3}{20}[/tex]

[tex]1,375=\frac{1375:125}{1000:125}=\frac{11}{8}=1\frac{3}{8}[/tex]

[tex]14,35=\frac{1435:5}{100:5}=\frac{287}{20}=14\frac{7}{20}[/tex]

[tex]0,84=\frac{84:4}{100:4}=\frac{21}{25}[/tex]

b)

[tex]\frac{3}{4}=\frac{3*25}{4*25}=\frac{75}{100}=0,75[/tex]

[tex]\frac{5}{8}=\frac{5*125}{8*125}=\frac{625}{1000}=0,625[/tex]

[tex]3\frac{1}{2}=3\frac{1*5}{2*5}=3\frac{5}{10}=3,5[/tex]

[tex]4\frac{2}{5}=4\frac{2*2}{5*2}=4\frac{4}{10}=4,4[/tex]

[tex]1\frac{9}{20}=1\frac{9*5}{20*5}=1\frac{45}{100}=1,45[/tex]

[tex]\frac{11}{25}=\frac{11*4}{25*4}=\frac{44}{100}=0,44[/tex]

Szczegółowe wyjaśnienie: