Question

x:3=6:15 x:5=4:15

Answer 1

\(x:3=6:15\\ x=6:15.3\\ x=\dfrac{6}{5}\)

 

Answer 2

6/5 và 4/3

Answer 3

1) x:3=6:15

    x:3=\(\dfrac{2}{5}\)

    x=\(\dfrac{2}{5}\).3

   x=\(\dfrac{6}{5}\)

Vậy x=\(\dfrac{6}{5}\)

2)x:5=4:15

   x:5=\(\dfrac{4}{15}\)

   x=\(\dfrac{4}{15}:5\)

   x=\(\dfrac{4}{75}\)

Vậy x=\(\dfrac{4}{75}\)