Which of the following pairs represent the same rational number ? (i) `(-7)/21 and 3/9` (ii) `16/20 and 20/(-25)` (iii) `(-2)/(-3) and 2/3` (iv) `(-3)/(-5) and (-12)/20` (v) `8/(-5) and (-24)/15` (vi) `1/3 and (-1)/9` (vii) `(-5)/(-9) and 5/(-9)`

Which of the pair represent the same rational number ? (-3)/(5) and (-12)/(20)

Which of the pair represent the same rational number ? (-5)/(-9) and (5)/(-9)

Which of the pair represent the same rational number ? (-7)/(21) and (3)/(9)

Which of the following rational numbers are equal? (i) (-9)/(12) and 8/(-12) (ii) (-16)/(20) and (20)/(-25)

Add the following rational numbers : (i) (12)/(7) and (3)/(7) : (ii) (-2)/(5) and (1)/(5) (iii) (3)/(8) and (1)/(8) (iv) (-5)/(11) and (7)/(-11) (v) (9)/(-13) and (-11)/(-13) (vi) (-2)/(9) and (5)/(9) (vii) -(17)/(9) and (-11)/(9) (viii) (-3)/(7) and (5)/(-7)

Find a rational number between (i) (3)/(8) and (2)/(5) (ii) 1.3 and 1.4 (iii) - 1 and (1)/(2) (iv) -(3)/(4) and -(2)/(5) (v) (1)/(9) and (2)/(9)

Add the following rational numbers: (i) 5/11 and 4/11 , (ii) -3/8 and 5/8 , (iii) -6/13 and 8/13 , (iv) -8/15 and -7/15 , (v) -13/20 and 17/20 , (vi) -3/8 and 5/(-8)

Add the following rational numbers: (i) -2/3 and 3/4 , (ii) -4/9 and 5/6 , (iii) -5/18 and 11/27 (iv) -7/12 and -5/24 , (v) -1/18 and -7/27 , (vi) 21/(-4) and -11/8

Add the following rational numbers: (i) (3)/(4) and (-3)/(5) (ii) (5)/(8) and (-7)/(12) ,(iii) (-8)/(9) and (11)/(6) ,((iv) (-5)/(16) and (7)/(24) ,(v) (7)/(-18) and (8)/(27) ,(vi) (1)/(-12) and (2)/(-15) , (vii) -1 and (3)/(4) ,(viii) 2 and (-5)/(4) ,(ix) 0 and (-2)/(5)