Which of the following rational numbers are equal? `(-7)/(21)\ a n d3/(-9)` (ii) `(-8)/(-14)\ a n d(13)/(21)`

Which of the following pairs of rational numbers are equal? (-7)/(21)\ a n d3/(-9) (ii) (-8)/(-14)\ a n d(13)/(21)

Which of the following rational numbers are equal? (i) (-7)/(21) and 3/(-9) (ii) (-8)/(-14) and (13)/(21)

Which of the following rational numbers are equal? (-9)/(12)\ a n d8/(-12) (ii) (-16)/(20)\ a n d(20)/(-25)

Add the following rational numbers: (i) (-7)/(27)\ a n d(11)/(18) (ii) (31)/(-4)\ a n d(-5)/8

Add the following rational numbers: (-7)/(27)\ a n d(11)/(18) (ii) (31)/(-4)\ a n d(-5)/8

Add the following rational numbers: (i) (-8)/(11)\ a n d(-4)/(11) (ii) 6/(13)\ a n d\ (-9)/(13)

Which of the following rational numbers are positive: (i) (-19)/(-13) (ii) (-21)/(13)

Which of the following rational numbers are positive: (i) (-19)/(-13) (ii) (-21)/(13)

Add the rational numbers: (i) (-5)/(16)\ a n d7/(24) (ii) 7/(-18)\ a n d\ 8/(27)