Find the Value of `-(2)/(13)-:(1)/(7)`

Find the value of x (-6)/(13) - (-7)/(15) = x

Find the value of (1)/(1+(1)/(3-(1)/(2+(4)/(2+(1)/(2+(1)/(2-(1)/(7)))))))+(3)/(3-(4)/(3+(1)/(2-(1)/(2))))*(13)/(7) (b) (15)/(7) (c) (11)/(21) (d) (1)/(28)

Find the value of: (-2)/13 div 1/7

Find the Value : 7+ 1/2

Find the value of: (-7)/12-:((-2)/13)

If a^(2)+1/(a^(2))=7 , find the value of (a-1/(a))

Evaluate: (7)/(13)-(6)/(13)