Question

Giúp mk nha , cảm ơn
A)3x2x8
  4x5x6x7

B) 36x22x51
    11x17x72

Answer 1

`a)[3xx2xx8]/[4xx5xx6xx7]`

`=[3xx2xx4xx2]/[4xx5xx3xx2xx7]`

`=2/[5xx7]=2/35`

`b)[36xx22xx51]/[11xx17xx72]`

`=[9xx4xx11xx2xx17xx3]/[11xx17xx9xx4xx2]`

`=3`

Answer 2

\(\dfrac{3\times2\times2\times2\times2}{2\times2\times5\times2\times3\times7}=\dfrac{2}{35}\)

Answer 3

a) \(\dfrac{3.2.8}{4.5.6.7}=\dfrac{1.1.4}{2.5.2.7}=\dfrac{2}{35}\)

b) \(\dfrac{36.22.51}{11.17.72}=\dfrac{1.2.3}{1.1.2}=\dfrac{6}{2}=3\)

Answer 4

Answer 5

a) \(\dfrac{3\times2\times4\times2}{2\times2\times5\times3\times2\times7}=\dfrac{4}{70}=\dfrac{2}{35}\)

b) \(\dfrac{4\times9\times11\times2\times17\times3}{11\times17\times9\times8}=\dfrac{24}{8}=3\)