Question

Answer 1

`= 12/5 . 2/9 - 9/10`

`= 8/15 - 9/10`

`= -11/30`

Answer 2

`a)2,4 . 2/9 -9/10`

`=12/5 . 2/9 - 9/10`

`=8/15 - 9/10`

`=16/30 - 27/30`

`=-11/30`

Answer 3

`2,4 . 2/9-9/10`
`=12/5 . 2/9 - 9/10`

`=8/15 - 9/10`

`=-11/30.`

Answer 4

$a)2,4.\frac{2}{9}-\frac{9}{10}$

$=\frac{12}{5}.\frac{2}{9}-\frac{9}{10}$

$=\frac{8}{15}-\frac{9}{10}$

$=\frac{16}{30}-\frac{27}{30}$

$=-\frac{11}{30}$