Question

Tính bằng cách thuận tiện nhất

\(\dfrac{13}{18}\) x \(\dfrac{9}{26}\) x \(\dfrac{2}{3}\) =

 

\(\dfrac{44}{15}\) x \(\dfrac{5}{22}\) x \(\dfrac{3}{2}\) =

Answer 1

a: =13/26*9/18*2/3=2/3*1/4=2/12=1/6

b: =44/22*5/15*3/2=2*1/3*3/2=2*1/2=1