Odpowiedź:
[tex]a) \frac{1}{2} * 0,7 = \frac{1}{2}*\frac{7}{10} = \frac{7}{20}[/tex]
[tex]b) \frac{4}{18}:0,05 = \frac{2}{9} :\frac{1}{20} = \frac{2}{9}*20 = \frac{40}{9}[/tex]
[tex]c) 0,125*\frac{1}{8} = \frac{1}{8} * \frac{1}{8} = \frac{1}{64}[/tex]
[tex]d) 4\frac{1}{2}+2,75 = \frac{9}{2}+\frac{11}{4}= \frac{29}{4}[/tex]
[tex]e) \frac{2}{3} - 0,3 = \frac{2}{3} - \frac{3}{10} = \frac{11}{30}[/tex]
[tex]f) 3\frac{2}{5}+ 2,15 = \frac{11}{3}+\frac{43}{20} = \frac{349}{60}[/tex]
[tex]g) 3,41-2\frac{3}{4}= \frac{341}{100}-\frac{11}{4}=\frac{33}{50}[/tex]
[tex]h) 0,2:\frac{5}{7} =\frac{1}{5}*\frac{7}{5} = \frac{7}{25}[/tex]
Szczegółowe wyjaśnienie:
