Question

Suma dinre 1 pe 3 si 2 (1\3 +2)

Answer 1

$\frac{1}{3} +2( \frac{1}3} +2)= \frac{1}{3} +2( \frac{1}{3} + \frac{2}{1} )=\frac{1}{3} +2 \cdot \frac{7}{3} = \frac{1}{3} + \frac{14}{3} = \frac{15}{3} =\boxed{5}.$

Answer 2

$\boxed{\overline{ \underline{\frac{1}{3} +2 \big ( \frac{1}{3} +2 \big )= \frac{1}{3}+ \frac{2}{3} +4= \frac{3}{3}+4=1+4=5.} }}$