Question

[Sách Giáo Khoa]

Rút gọn các biểu thức (chú ý đến thứ tự thực hiện các phép tính)

a) \(\dfrac{x+1}{x+2}:\dfrac{x+2}{x+3}:\dfrac{x+3}{x+1}\)

b) \(\dfrac{x+1}{x+2}:\left(\dfrac{x+2}{x+3}:\dfrac{x+3}{x+1}\right)\)

c) \(\dfrac{x+1}{x+2}.\dfrac{x+2}{x+3}:\dfrac{x+3}{x+1}\)

d) \(\dfrac{x+1}{x+2}.\left(\dfrac{x+2}{x+3}:\dfrac{x+3}{x+1}\right)\)

e) \(\dfrac{x+1}{x+2}:\dfrac{x+2}{x+3}.\dfrac{x+3}{x+1}\)

f) \(\dfrac{x+1}{x+2}:\left(\dfrac{x+2}{x+3}.\dfrac{x+3}{x+1}\right)\)

Answer 1

[Nguyen Thuy Hoa]