"का घन ज्ञात कीजिए: `7/9` (ii) `8/(11)` (iii) `(12)/7` (iv) `(13)/8`"

Find the cube of : (7)/(9) (ii) (8)/(11) (iii) (12)/(7) (iv) (13)/(8)

Multiply: (9)/(-7)by(36)/(-11) (ii) (-11)/(13)by(-21)/(7)

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)

The perpendicular distance from (1,2) to the straight line 12x+5y=7 is (i)(15)/(13) (ii) (12)/(13) (iii) (5)/(13) (iv) (7)/(13)

Write down the reciprocal of: (i) 5/8 (ii)7 (iii) 1/12 (iv) 12 3/5

Find the sum : (i) (7)/(9)+ (-11)/(9)" " (ii) (8)/(-11)+(3)/(11)

Find the additive inverse of : (i) (5)/(9) " " (ii) (-15)/(8)" " (iii) (9)/(-11)" " (iv) (-6)/(-7)

Convert each of the following Into an improper fraction: (i) 5(5)/(7) (ii) 9(3)/(8) (iii) 6(3)/(10) (iv) 3(5)/(11) (v) 10(9)/(14) (vi) 12(7)/(15) (vii) 8(8)/(13) (viii) 51(2)/(3)

Write the additive inverse of each of the following rational numbers: (4)/(9)(ii)(-13)/(7) (iii) (5)/(-11) (iv) (-11)/(-14)

Which ratio is greater ? (i) (5 : 6) or (7: 9) (ii) (2 : 3) or (4 : 7) (iii) (1 : 2) or (4 : 7) (iv) (3 : 5) or (8 : 13)