Question

Answer 1

Ta có : `-3/4=(-3xx2)/(4xx2)= -6/8`

Mà `-6/8 < -5/8`

`=> -3/4 < -5/8`

__

Ta có : `7/12=(7xx18)/(12xx18)=126/216`

`11/18 = (11xx12)/(18xx12)=132/216`

Mà `126/216 < 132/216`

`-> 7/12 < 11/18`

`c,` Vì `-4<-3`

`-> -4,562 < -3,001`

Answer 2

a)\(\dfrac{-3}{4}>\dfrac{-5}{8}\)                  b)\(\dfrac{7}{12}>\dfrac{11}{18}\)

c)\(-4,562< -3,002\)