Question

\(\dfrac{7}{22}\times\dfrac{5}{3}+\dfrac{7}{22}\times\dfrac{1}{3}-\dfrac{7}{22}\times\dfrac{11}{21}\)

Answer 1

`7/22 xx 5/3 + 7/22 xx 1/3 - 7/11 xx 11/21`

`= 7/22 xx ( 5/3 + 1/2 - 11/21)`

`= 7/22 xx ( 6/3 - 11/21)`

`= 7/22 xx ( 2 - 11/21)`

`= 7/22 xx ( 42/21 - 11/21)`

`= 7/22 xx ( (42-12)/21)`

`= 7/22 xx 31/21`

`=31/66`

 

`#H.J`

Answer 2

\(\dfrac{7}{22}.\dfrac{5}{3}+\dfrac{7}{22}.\dfrac{1}{3}-\dfrac{7}{22}.\dfrac{11}{21}\)

\(=\dfrac{7}{22}.\left(\dfrac{5}{3}+\dfrac{1}{3}-\dfrac{11}{21}\right)\)

\(=\dfrac{7}{22}.\dfrac{31}{21}=\dfrac{31}{66}\)

Answer 3

7/22 . 5/3 + 7/22 . 1/3 - 7/22 . 11/21

= 7/22 . ( 5/3 + 1/3 - 11/21 )

= 7/22 . 31/21

= 217/462 = 31/66