Question

 (-7/2).(-11/21)
 (-10/3).(2,5)

Answer 1

`(-7/2).(-11/21)`

`=(-1/2).(-11/3)`

`=11/6`
` (-10/3).(2,5)`

`=(-10/3). 25/10`

`=(-1/3).25/1`

`=-25/3`

Answer 2

a)

\(-\dfrac{7}{2}\cdot\dfrac{-11}{21}=\dfrac{11}{6}\)

b)

\(=-\dfrac{10}{3}\cdot\dfrac{5}{2}=-\dfrac{25}{3}\)

Answer 3

câu 1 = 11/16

câu 2 = - 25/3

Answer 4

1)\(\dfrac{-7}{2}\)x\(\dfrac{-11}{21}\)

=\(\dfrac{11}{6}\)

2)

=\(\dfrac{-10}{3}\)x\(\dfrac{5}{2}\)

=\(\dfrac{-25}{3}\)