Question

đề bài : Tính

Answer 1

a. x=2/3:4/9

     x=3/2

b.x=6/14x7/3

   x=1

Answer 2

a) x= 2/3:4/9

x = 18/12

x = 3/2

b) x = 6/14x7/3

x = 42/42

x = 1

Answer 3

a. x =\(\dfrac{2}{3}:\dfrac{4}{9}\)

     x=\(\dfrac{3}{2}\)

b.x=\(\dfrac{6}{14}x\dfrac{7}{4}\)

   x=1

Answer 4

a. 

x=2/3:4/9

   x=3/2

b

.x=6/14x7/3

  x=1

Answer 5

c)\(x=\dfrac{2}{3}:\dfrac{4}{9}\)

\(x=\dfrac{2}{3}\times\dfrac{9}{4}\)

\(x=\dfrac{18}{12}\)

\(x=\dfrac{3}{2}\)

d)\(x=\dfrac{6}{14}\times\dfrac{7}{3}\)

\(x=\dfrac{42}{42}\)

\(x=1\)