Question

1/3 + 1/6 + 1/18 =

7/20 - [ 5/8 - 3/5 ]

 

Answer 1

1/3 + 1/6 + 1/18 

= 1/2 + 1/18

= 5/9

7/20 - [ 5/8 - 3/5 ]

= 7/20 - 1/40

= 13/40

Answer 2

`1/3 + 1/6 + 1/18 `

`= 6/18 + 3/18 + 1/18`

`= 10/18` 

`= 5/9`

`7/20 - [ 5/8 - 3/5 ]`

`=7/20-1/40`

`=13/40`

 

Answer 3

a)\(\dfrac{1}{3}\)+\(\dfrac{1}{6}\)+\(\dfrac{1}{18}\)=\(\dfrac{6+3+1}{18}\)=\(\dfrac{10}{18}\)

b)\(\dfrac{7}{20}\)- ( \(\dfrac{5}{8}\)-\(\dfrac{3}{5}\))=\(\dfrac{14-1}{40}\)=\(\dfrac{13}{40}\)