Add the following rational numbers: `3/4\ a n d\ (-3)/5` (ii) `-3\ a n d3/5`

Add the following rational numbers: (-5)/7\ a n d3/7 (ii) (-15)/4\ a n d7/4

Add the following rational numbers: (i) (-5)/7\ a n d3/7 (ii) (-15)/4\ a n d7/4

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

Verify commutativity of addition of rational numbers for each of the following pairs of rational number : 4\ a n d(-3)/5 -4\ a n d4/(-7)

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)

Add the rational numbers: (i) (31)/(-4)\ a n d(-5)/8 (ii) 5/(36)\ a n d\ (-7)/(12)

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

Add the rational numbers: (i) 3/4a n d\ (-5)/8\ \ \ \ (ii) 5/(-9)a n d7/3

Add the rational number : 6/(13)\ a n d\ (-9)/(13)