(ii) `(9)/(14)=(4.5)/(......)=(......)/42=(......)/3.5`

4(3)/(7)+2(5)/(14)

1.4+2.5+.......+n(n+3)=

(3)/(7)xx(9)/(14) div (5)/(7)=?

Simplify : ((3)/(5) xx (-15)/(21)) +((-9)/(14) +(45)/(28)) -((2)/(3) xx (30)/(12))

Arrange the following rational numbers in ascending order: (i) (4)/(-9), (-5)/(12), (7)/(-18), (-2)/(3) (ii) (-3)/(4), (5)/(-12), (-7)/(16), (9)/(-24) (iii) (3)/(-5), (-7)/(10), (-11)/(15), (-13)/(20) (iv) (-4)/(7), (-9)/(14), (13)/(-28), (-23)/(42)

Evaluate : (i) (3)/(4)-(4)/(5) (ii) -3-(4)/(7) (iii) (7)/(24)-(19)/(36) (iv) (14)/(15)-(13)/(20) (v) (4)/(9)-(2)/(-3) (vi) (7)/(11)- (-4)/(-11) (vii) (-5)/(14) -(-2)/(7) (viii) (-5)/(-8)-(-3)/(4)

Simplify : (i) (3)/(20)xx(4)/(5) (ii) (-7)/(30)xx(5)/(14) (iii) (5)/(-18)xx(-9)/(20) (iv) (-9)/(8)xx(-16)/(3) (v) -32xx(-7)/(36) (vi) (16)/(-21)xx(-14)/(5)

Multiply :(3)/(4)by(5)/(7) (ii) (3)/(7)by((-4)/(5))((-5)/(9)) by 4( iv) ((-36)/(7))by(-(28)/(9))

Arrange the following fraction in descending order: (5)/(7), (9)/(14), (17)/(21) and (31)/(42)

The value of 15(7)/(10)+3(1)/(5) of [5(1)/(8)-(2(1)/(4)+(5)/(3)xx(15)/(14)div(10)/(9) of (3)/(14))] is :