Question

Tính:

a)\(\frac{6}{8}\)x\(\frac{7}{6}\)b) \(6\)x\(\frac{7}{9}\)c)\(\frac{4}{6}\):\(\frac{8}{2}\)

Answer 1

  a.6/8 * 7/6

  =6*7/8*6

   =42/48

    =21/24(rut gọn)

    =7/8(rút gọn)

 b.6*7/9 

    =6*7/9

    =42/9

    =14/3(rút gọn)

 c.4/6 : 8/2

   =4/6 * 2/8

   =4*2/6*8

   =8/48

   =4/12=2/6=1/3(rut gọn)

   Đúng thì k cho mình nha

Answer 2

a)\(\frac{6}{8}\times\frac{7}{6}=\frac{6\times7}{8\times6}=\frac{42}{48}=\frac{7}{8}\)

b)\(6\times\frac{7}{9}=\frac{6}{1}\times\frac{7}{9}=\frac{6\times7}{1\times9}=\frac{42}{9}=\frac{14}{3}\)

c)\(\frac{4}{6}\div\frac{8}{2}=\frac{4}{6}\times\frac{2}{8}=\frac{4\times2}{6\times8}=\frac{8}{48}=\frac{1}{6}\)

#Học tốt!!!

~NTTH~

Answer 3

a)\(\frac{6}{8}\cdot\frac{7}{6}=\frac{6\cdot7}{8\cdot6}=\frac{7}{8}\)

b)\(6\cdot\frac{7}{9}=\frac{6}{1}\cdot\frac{7}{9}=\frac{42}{9}=\frac{14}{3}\)

c)\(\frac{4}{6}:\frac{8}{2}=\frac{4}{6}\cdot\frac{2}{8}=\frac{8}{48}=\frac{1}{6}\)