Răspuns:
Explicație pas cu pas:
a)
[tex]3,(3) \times 0,24[/tex]
[tex] = \frac{33 - 3}{9} \times \frac{24 {}^{(4} }{100} \\ [/tex]
[tex] = \frac{30 {}^{(3} }{9} \times \frac{6}{25} \\ [/tex]
[tex] = \frac{ \not10}{ \not3} \times \frac{ \not6}{ \not25} = 2 \times \frac{2}{5} = \bf{} \frac{4}{5} \\ [/tex]
b)
[tex]0,2(6) \times 2,5[/tex]
[tex] = \frac{26 - 2}{90} \times \frac{25 {}^{(5} }{10} \\ [/tex]
[tex] = \frac{ \not24}{ \not90} \times \frac{ \not5}{ \not2} = \frac{12 {}^{(6} }{18} = \bf{} \frac{2}{3} \\ [/tex]
c)
[tex]2,(6)\times 0,8(3)[/tex]
[tex] = \frac{26 - 2}{9} \times \frac{83 - 8}{90} \\ [/tex]
[tex] = \frac{24 {}^{(3} }{9} \times \frac{75 {}^{(15} }{90} \\ [/tex]
[tex] = \frac{ \not8}{3} \times \frac{5}{ \not6} = \frac{4}{3} \times \frac{5}{3} = \bf{} \frac{20}{9} \\ [/tex]
