Question

1 - ( 1/7 x 4 + 5/21 )

Answer 1

\(=1-\left(\dfrac{4}{7}+\dfrac{5}{21}\right)\\ =1-\dfrac{17}{21}\\ =\dfrac{4}{21}\)

Answer 2

` 1 - ( 1/7 xx 4 + 5/21)`

` = 1 - (4/7 + 5/21)`

` = 1 - ( 12/21 + 5/21)`

` = 1 - 17/21`

` = 21/21 - 17/21`

` = 4/21`

Answer 3

1-(4/7+5/21)

1-\(\dfrac{17}{21}\)

4

Answer 4

`1-(1/7xx4+5/21)`

`=1-(4/7+5/21)`

`=1-(12/21+5/21)`

`=1-17/21=9/21=3/7`

Answer 5

1-(4/7+5/21)

1-