Question

bài 1 : tìm x 

a ) 2/3 . X = 2/7

b ) X : 8/13 = 13/7 

c ) 3/2 : X = 7/4 

Answer 1

a) x=3/7

b)x=8/7

c)x=6/7

Answer 2

a)\(x=\dfrac{2}{7}:\dfrac{2}{3}=\dfrac{3}{7}\)

b)\(x=\dfrac{13}{7}\times\dfrac{8}{13}=\dfrac{8}{7}\)

c)\(x=\dfrac{3}{2}:\dfrac{7}{4}=\dfrac{6}{7}\)

Answer 3

=3/7

=8/7

=6/7

Answer 4

x = 2/7 : 2/3

x = 6/14

 

x=13/7 . 8/13

x=8/7

 

x=3/2:7/4

x=12/14

Answer 5

a) x = 2/7 : 2/3

x = 3/7

vậy x = ...

b) x = 13/7 x 8/13 

x = 8/7 

vậy x =...

c) x = 3/2 : 7/4 

x = 6/7

vậy x =...

Answer 6

a ) \(\dfrac{2}{3}\) . x = \(\dfrac{2}{7}\)

x = \(\dfrac{2}{7}:\dfrac{2}{3}\)

x = \(\dfrac{3}{7}\)

b ) x : \(\dfrac{8}{13}\) = \(\dfrac{13}{7}\) 

x = \(\dfrac{13}{7}\times\dfrac{8}{13}\)

x = \(\dfrac{8}{7}\)

c ) \(\dfrac{3}{2}\) : x = \(\dfrac{7}{4}\)
x = \(\dfrac{3}{2}:\dfrac{7}{4}\)

x = \(\dfrac{6}{7}\)