Add the following. 1) 3/4+2/4+1/4=......... 2) 6/5+2/5=......

Add the following fractions: 2 3/5+4/5+\ 1 2/5 (ii) 1 1/4+\ 2 3/4+\ 7 1/4

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

Simplify the following : (2""4/5-1""3/5) div (3""3/5-2""1/5) .

Which is greater in each of the following: (i) 2/3, 5/2 (ii) (-5)/6, (-4)/3 (iii) (-3)/4, 2/(-3) (iv) (-1)/4, 1/4 (v) -3 2/7, -3 4/5

Evaluate the following: ([(1,3),( -1,-4))]+[(3 ,-2 ),(-1 ,1)]) [(1 ,3,5),( 2 ,4 ,6)]

Name the octants in which the following points lie: (1, 2, 3) , (4, -2, 3) , (4, -2, -5) , (4, 2, -5) , ( -4, 2,-5) , ( -4, 2, 5) , (-3, -1, 6) , (2, -4, -7) .

Add -3/4 and 5/6

Add the following 5a+2a^2-3a^3+8, -4a^2 +5a^3 -9, -2a+6a^2 -3a^3 , -a+4a^2 -9, 4-a-2a^2 +3a^3

Add the following -2a+5a^2-a^3+2, -5a^2 -2a^3 +4, a-a^2 +3a^3, -2a-3a^2-4, 6-3a+2a^2-2a^3

Sum of n terms of the series 1/(1.2.3.4.)+1/(2.3.4.5) +1/(3.4.5.6)+....