Question

a) 2/7 X x = 2/3        b) 2/5 : x = 1/3

c) x : 7/11 = 22         d) 1/2 : x = 5

Answer 1

a) 2/7 X x = 2/3 

X = 2/3 : 2/7 

X = 7/3

b) 2/5 : x = 1/3

X =  2/5 : 1/3

X = 6/5

c) x : 7/11 = 22

X = 22 x 7/11

X = 14

d) 1/2 : x = 5

X = 1/2 : 5

X = 1/10

Answer 2

a) x = 2/3 : 2/7

x = 7/3

vậy x =...

b) x = 2/5 : 1/3

x = 6/5

vậy x =..

c) x = 22 x 7/11

x = 14

vậy x =...

d) x = 1/2 : 5

x = 1/10

vậy x =...

Answer 3

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

            \(x=\dfrac{2}{3}\div\dfrac{2}{7}\)

           \(x=\dfrac{7}{3}\)

b) \(\dfrac{2}{5}:x=\dfrac{1}{3}\)

          \(x=\dfrac{2}{5}:\dfrac{1}{3}\)

          \(x=\dfrac{6}{5}\)

c) \(x:\dfrac{7}{11}=22\)

    \(x=22\times\dfrac{7}{11}\)

    \(x=\dfrac{154}{11}\)

   \(x=14\)

d) \(\dfrac{1}{2}:x=5\)

          \(x=\dfrac{1}{2}:5\)

          \(x=\dfrac{1}{10}\)

Answer 4

a) 2/7 X x = 2/3 

X = 2/3 : 2/7 

X = 7/3

b) 2/5 : x = 1/3

X =  2/5 : 1/3

X = 6/5

c) x : 7/11 = 22

X = 22 x 7/11

X = 14

d) 1/2 : x = 5

X = 1/2 : 5

X = 1/10

Answer 5

a) 2/7 X x = 2/3  X = 2/3 : 2/7  X = 7/3

b) 2/5 : x = 1/3 X =  2/5 : 1/3 X = 6/5 c) x : 7/11 = 22 X = 22 x 7/11 X = 14

d) 1/2 : x = 5 X = 1/2 : 5 X = 1/10

Answer 6

a) 2/7 X x = 2/3 

X = 2/3 : 2/7 

X = 7/3

b) 2/5 : x = 1/3

X =  2/5 : 1/3

X = 6/5

c) x : 7/11 = 22

X = 22 x 7/11

X = 14

d) 1/2 : x = 5

X = 1/2 : 5

X = 1/10