Question

112/17-9/45+3/6+21 = ?

Answer 1

112/17-9/45+3/6+21
6,58823529412 - 0,2  + 0,5 + 21
6,58823529412 + 21,3
27,8882352941   ou 27,88

Resposta: 27,88

Answer 2

112/17 - 9/45 + 3/6 + 21

MMC (17, 45, 6) = 1530

10080/1530 - 306/1530 + 765/1530 + 32130/1530
9774/1530 + 765/1530 + 32130/1530
10539/1530 + 32130/1530
42669/1530 (÷ 9)
=> 4741/170