Question

tìm x trong các tỉ lệ sau:

a) (1/3.x) :2/3 = 1 3/4 : 2/5

Answer 1

\(a,\left(\frac{1}{3}.x\right):\frac{2}{3}=1\frac{3}{4}:\frac{2}{5}\)

    \(\left(\frac{1}{3}.x\right):\frac{2}{3}=\frac{35}{8}\)

     

Answer 2

\(\frac{1}{3}x\div\frac{2}{3}=\frac{13}{4}\div\frac{2}{5}\)

\(\frac{1}{2}x=\frac{65}{8}\)

\(x=\frac{65}{4}\)

Mình ko chắc chắn nhé

Answer 3

 thiếu nha

  tiếp nè

(1/3.x)=35/8:2/5

(1/3.x)=175/16

      x=175/16:1/3

x=525/16