Question

[Bùi Thùy Linh]

a) 6/11 : 3/22 x 3/8

b) 33/23 : 44/69 : 27/16

c) 31x14x63 / 21x62x35

giải cả ra cho mik nha 

Answer 1

[Nguyễn Thị Thương Hoài]

    \(\dfrac{6}{11}\) : \(\dfrac{3}{22}\) x \(\dfrac{3}{8}\)

=  \(\dfrac{6}{11}\) x \(\dfrac{22}{3}\) x \(\dfrac{3}{8}\)

= \(\dfrac{3}{2}\)

    \(\dfrac{33}{23}\) : \(\dfrac{44}{69}\): \(\dfrac{27}{16}\)

= \(\dfrac{33}{23}\) x \(\dfrac{69}{44}\)x \(\dfrac{16}{27}\)

= \(\dfrac{4}{3}\)

      \(\dfrac{31\times14\times63}{21\times62\times35}\)

= \(\dfrac{31\times2\times7\times21\times3}{21\times31\times2\times5\times7}\)

= \(\dfrac{3}{5}\)