Question

O valor da expressão (2+1/2+1/9):(3/9+1)

Answer 1

$\frac{2+ \frac{1}{2}+ \frac{1}{9} }{ \frac{3}{9} +1} = \frac{ \frac{2.9+1.9+1.2}{18} }{ \frac{3.1+1.9}{9} } = \frac{ \frac{18+9+2}{18} }{ \frac{12}{9} } = \frac{ \frac{29}{18} }{ \frac{12}{9} } = \frac{20}{18} . \frac{9}{12} = \frac{10}{12} = \frac{5}{6}$