Question

Rezolvați folosind ordinea efectuării operațiilor:2/9×[1/4+1/5+(1/3)²]

Answer 1

$\frac{2}{9}*(\frac{1}{4} +\frac{1}{5}+\frac{1}{9}) = \frac{2}{9}*(\frac{45}{180} +\frac{36}{180}+\frac{20}{180})=\frac{2}{9}*\frac{101}{180}= \frac{101}{9*90} =\frac{101}{810}$