Răspuns:
[tex]5. \: a) \: \frac{5}{12} \times 72m = \frac{5 \times 72}{12} = \frac{360}{12} = 30m [/tex]
[tex]b) \frac{4}{7} \times 175ore = \frac{4 \times 175}{7} = \frac{700}{7} = 100ore[/tex]
[tex]6. \: a) \frac{2}{7} \times \frac{35}{12} = \frac{2}{1} \times \frac{5}{12 } = \frac{5}{6} [/tex]
[tex]b) \frac{5}{12} \times \frac{54 (6}{84 (6} = \frac{5}{12(3} \times \frac{9(3}{14} = \frac{5}{4} \times \frac{3}{14} = \frac{15}{54} [/tex]
[tex]7. \: a)42\% \times 300 = \frac{42}{100} \times 300 = 42 \times 3 = 126[/tex]
[tex]b)17\% \times 1200 = \frac{17}{100} \times 1200 = 17 \times 12 = 204[/tex]
Sper ca te-am ajutat!
