Question

Tìm x biết:12/x=2/5

Answer 1

12/x = 2/5 

ta có : 

12/30 - 2/5 

Chúc bạn học giỏi 

Answer 2

x là:30

Answer 3

12/x=2/5

x=12x5:2

x=30

Answer 4

Thanks

Answer 5

x=12/2/5

x=30

Answer 6

ds

x=

30

Answer 7

12/x=2/5

=>12/30=2/5

=>x=30

Answer 8

Cho 12/x=2/5

x=30: vì 12/30 rút gọn đi sẽ đc 2/5

Answer 9

12/x=2/5  => 12*5=x*2  => 60=x*2 => x=30

Answer 10

12/x=2/5

=>12/30=2/5

=>x=30

Vậy x=30

 

Answer 11

\(\frac{12}{x}\)= \(\frac{2}{5}\)

Có 

\(\frac{12}{x}\)= \(\frac{2}{5}\)

\(\Rightarrow\)\(x\cdot2=12\cdot5\)

          x = \(\frac{12\cdot5}{2}\)

           x= 30

Vậy x = 30

Answer 12

\(\frac{12}{x}=\frac{2}{5}\)

=>2x=12.5

=>2x=60

=>  x=60:2

=>  x=30

Answer 13

->12*5=x*2

-> 60 = x*2

-> x = 60/2

-> x = 30  

 Vay x = 30