Use Of ‘ of ’ :-
Example -
If an expression involves the use of ‘ of ’, which means multiplication, then this multiplication is carried out even before division.
1) Simplify :-
1
81 ÷ ------ of 27
3
1
81 ÷ ------ of 27 [Simplify the ‘ of ’ first]
3
= 81 ÷ 9 [Then divide]
= 9 (Ans.)