Question

cần gấp

Answer 1

a \(\dfrac{4}{7}\times\dfrac{21}{16}\times\dfrac{8}{5}=\dfrac{6}{5}\)

b \(\dfrac{34}{35}:x=\dfrac{17}{5}\)

\(x=\dfrac{34}{35}:\dfrac{17}{5}\)

\(x=\dfrac{34}{35}\times\dfrac{5}{17}\)

\(x=\dfrac{2}{7}\)

Answer 2

a)=6/5
b)=2/7