`(5)/(8)-(1)/(8)=?`

(5)/(8)+(1)/(2)times((5)/(8)-(6)/(16))=

6(3)/(8)-3(1)/(16)+5(1)/(8)=?

Draw number lines and locate the following points: (i) (1)/(4),(1)/(2),(3)/(4),(4)/(4) (ii) (1)/(8),(2)/(8),(3)/(8),(5)/(8),(7)/(8) (iii) (2)/(5),(3)/(5),(4)/(5),(8)/(5)

Find the sum 1-((1)/(8))+(((1)/(8))*((3)/(16)))-((1*3*5)/(8*16*24))+

1-(1)/(8)+(1.3)/(8.16)-(1.3.5)/(8.16.24)+…..=

Find the sum of n terms of the series (1)/((2 xx 5))+(1)/((5xx8))+(1)/((8xx11))+... .