Find the sum. (a) `3/7+2/7`
b)`7/9+1/9`

Find the sum: 3(1)/(2)+7

Find the sum: 5/9+\ 6+1 5/7

Find the product 3/7xx16/9

Without adding, find the sum. (i) 1+3+5+7+9 (ii) 1+3+5+7+9+l1+13+15+17+19

Find the sum : (a) (-7)+(-9)+4+16 (b) (37)+(-2)+(-65)+(-8)

Find the sum 3/2-5/6+7/(18)-9/(54)+oodot

Without adding, find the sum: i) 1+3+5+7+9\ ii) \ 1+3+5+7+9+11+13+15+17+19 iii) 1+3+5+7+9+11+13+15+17+19+21+23

Without doing the actual addition, find the sum of: (i) 1 + 3 + 5 + 7 + 9 + 11+ 13 + 15 + 17+ 19 + 21 + 23 (ii) 1 + 3 + 5 + 7 + 9 + ......+39 + 41 (iii) 1 + 3 + 5 + 7 + 9 + ......+51 + 53

Find the sum 3/2-5/6+7/(18)-9/(54)+...oodot

Evaluate the sum: 9(3)/(7)+2(4)/(7)