Question

2/3 × 4/7 : 1/5

X x 4/5 = 3/5

Answer 1

\(\dfrac{2}{3}\times\dfrac{4}{7}:\dfrac{1}{5}=\dfrac{2}{3}\times\dfrac{4}{7}\times5=\dfrac{40}{21}\)

\(x\times\dfrac{4}{5}=\dfrac{3}{5}\)

\(\Leftrightarrow x=\dfrac{3}{5}:\dfrac{4}{5}\)

\(\Leftrightarrow x=\dfrac{3}{4}\)

Answer 2

1,2/3.4/7:1/5=8/21:1/5=40/21

2,X x 4/5=3/5

       x=3/5:4/5

       x=3/4

Chúc e học tốt nkee!