Question

calcule o valor da expressão3/4÷1/2 - 2/3

Answer 1

3/4 : 1/2 - 2/3
= 3/4 x 2 - 2/3
= 6/4 - 2/3
= 3/2 - 2/3
= (3 x 3)/(2 x 3) - (2 x 2)/(3 x 2)
= 9/6 - 4/6
= 5/6

Answer 2

3/4/1/2-2/3
inverte
3/4.2/1-2/3
6/4-2/3
18/12-8/12
10/12