Question

[Llnn]

32/21 x 49/45 : 16/22 x 15/33

Answer 1

[Trương Nhật Minh]

Ta có:

\(\dfrac{32}{21}\times\dfrac{49}{45}\div\dfrac{16}{22}\times\dfrac{15}{33}=\)\(\dfrac{32}{21}\times\dfrac{49}{45}\times\dfrac{22}{16}\times\dfrac{15}{33}=\)

\(=\dfrac{32}{21}\times\dfrac{49}{45}\times\dfrac{22}{16}\times\dfrac{15}{33}\)\(=\dfrac{16\times2}{7\times3}\times\dfrac{7\times7}{3\times3\times5}\times\dfrac{11\times2}{16}\times\dfrac{5\times3}{11\times3}\)

\(=\dfrac{2}{3}\times\dfrac{7}{3}\times\dfrac{2}{1}\times\dfrac{1}{3}=\dfrac{28}{9}\)

Answer 2

[Nguyễn Hoàng Huy]

Bạn tham khảo nhé.

$\frac{32}{21}\times \frac{49}{45}:\frac{16}{22}\times \frac{15}{22}$

$=\frac{14}{9}:\frac{16}{22}\times \frac{15}{22}$

$=\frac{77}{36}\times \frac{15}{22}$

$=\frac{35}{24}$