Follow BODMAS rule to solve this question, as per the order given below,
Step - 1 - Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket, the BODMAS rule must be followed,
Step - 2 - Any mathematical 'Of' or 'Exponent' must be solved next,
Step - 3 - Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,
Step - 4 - Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.
Given expression is,
[()+()÷()]×() [()+()]×()=×= ⇒ Square root of (4/9) = √(4/9) = 2/3