Find the sum :
`(-5)+(-8)+(-11) + …. + (-230)`

Find the sum: 5/(8)+8/ ( 28)

Find the sum: 4(3)/(5)+2(7)/(8)

Find the sum : (i) 5/4 + ((-11)/(4)) , (ii) 5/3 + 3/5 , (iii) (-9)/(10) + 22/15 (iv) (-3)/(-11) + 5/9 , (v) (-8)/(19) + ((-2))/(57) , (vi) (-2)/(3) + 0 (vii) -2'1/3 + 4'3/5

Find the product : (-11)xx{(-8)xx5}

Find the reciprocal of: (8)/((-11))

Find the sum of: 10 terms of 5 +8 + 11+ ....,

Divide the sum of (5)/(8) "and" (-11)/(12) by the difference of (3)/(7) "and" (5)/(14) .

Re- arrange suitably and find the sum: 5/3+(11)/2+\ (-9)/4+\ (-8)/3+\ (-7)/2

Evaluate the sum: 5/(18)+11/(18)

Find the sum: 2+4+6+\ .... +200 (ii) 3+11+19+\ ..... +803 (iii) (-5)+(-8)+(-11)+\ ...... +(-230)