Question

3/10 - (1/6 + 1/2 ) : 1/3

Answer 1

\(=\dfrac{3}{10}-\dfrac{2}{3}.3=\dfrac{3}{10}-2=\dfrac{3}{10}-\dfrac{20}{10}=-\dfrac{17}{10}\)

Answer 2

= 3/10 - 2/3 : 1/3 

= 3/10 - 2

= -17/10

Answer 3

\(\dfrac{3}{10}-\left(\dfrac{1}{6}+\dfrac{1}{2}\right):\dfrac{1}{3}=\dfrac{3}{10}-\left(\dfrac{1+3}{6}\right):\dfrac{1}{3}=\dfrac{3}{10}-\dfrac{4}{6}:\dfrac{1}{3}=\dfrac{3}{10}-2=\dfrac{3-20}{10}=-\dfrac{17}{10}\)