1)4,5-2,5:3/4/2:(1 1/4-2 3/4)= 2)3/4:√3/√27=

Question

1)4,5-2,5:3/4/2:(1 1/4-2 3/4)= 2)3/4:√3/√27=

Answer 1

2) 3÷4 ÷(/3÷/27)^2= 3÷4 ÷ 3÷27=3÷4÷1÷9=3÷4×9 =27÷4=6.3÷4