(ii) `((3/5)^3 xx(1/7)^3)/((3/5)^2 xx(1/7)^4)`

The value of ((2/5)^(3)xx(1/7)^(3))/((2/5)^(2)xx(1/7)^(4)) is

(3/2 xx (-7)/4) - ((-5)/2 xx 3/4)

Simplify and express each of the following as power of a rational number: (2/3)^3xx(-6/7)^2xx(-7/4)xx3/2 (iii) -(2/5)^2xx(5/7)^2xx(49)/5+(-4/5)^3xx5/4xx3/4

Simplify: (6)/(5) xx (3)/(7) - (1)/( 5) xx (3)/(7)

Simplify : [ ((- 3 )/( 2) xx (4)/(5) ) + ((9)/(5) xx (-10)/( 3)) - ((1)/(2)xx (3)/(4)) ] div [ ((21)/( 9) xx (3)/(7)) +((7)/(8) xx (16)/(14)) ]

(1)/(5) xx [(2)/(7) +(3)/(8)] =[(1)/(5) xx (2)/(7)] + ________.