Question

A= 1/3.4+ 1/4.5+1/5.6+...+1/95.96

Answer 1

A=1/3-1/4+1/4-1/5+....+1/95-1/96

=1/3-1/96=31/96

Answer 2

1/3-1/4+1/4-1/5+1/5-1/6+......+1/95-1/96

1/3-1/96

32-1/96

31/96