Question

\(\frac{6}{8}=\frac{15}{x}\)

Answer 1

\(\frac{6}{8}\)= \(\frac{15}{20}\)

Vì \(\frac{6}{8}\)rút gọn là \(\frac{3}{4}\)và \(\frac{15}{20}\)cũng rút gọn bằng \(\frac{3}{4}\)

ai k mình mình k lại

Answer 2

x là 20 đó bạn 

Answer 3

\(\frac{6}{8}\)=   \(\frac{15}{x}\)
==>6 * x = 8 * 15
==>6 * x = 120
==>     x =120 : 6
==>     x = 20

Answer 4

\(\frac{6}{8}=\frac{3}{4}\); \(\frac{15}{x}=\frac{3}{x:5}\)\(\Rightarrow4=x:5\Rightarrow x=5.4=20\)

Answer 5

=>6x=8x15

=>6x=120

     x=120:6

    x=20