👤

aratati ca (1 pe 2 + 1pe 5 ) × 20pe 7 = 2

Răspuns :


[tex] (\frac{1}{2} + \frac{1}{5} )* \frac{20}{7} =2[/tex]
[tex]= \frac{5+2}{10} * \frac{20}{7}[/tex]
[tex]= \frac{7}{10} * \frac{20}{7} [/tex] (se simplifica 7 cu 7 si 10 cu 20)
[tex]\bold{=2}[/tex]