Add the following :
`6/8+4/8`

Add the following on a number line: (8)/(5) to (-2)/(5)

Use number line and add the following integers : (a) 9+(-6) (b) 5+(-11) (c) (- 1 )+ (-7) (d) (-5) + 10 (e) ( -1 ) + ( -2 ) + (- 3 ) (f) ( - 2 ) + 8 + (- 4)

Add the following (i) 7abc , -5abc , 9abc , -8abc (ii) 2x^2y , -4x^2y , 6x^2y , -5x^2y

Add the following fractions: 1/6+4/6 (ii) 2/7+3/7+4/7

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) (-8)/(11)\ a n d(-4)/(11) (ii) 6/(13)\ a n d\ (-9)/(13)

Verify the following : (-6)+[(-8)+12]=[(-6)+(-8)]+12

Evaluate the following : 7xx4xx(-6)xx8

Find the mean of the following 3, 4, 6, 7, 8, 14.

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