Question

please help me for this problem ..to solve ...problem is given in picture above ​

Answer 1

1/3*4/5 + 1/5*3/7 + 1/3*9/16 + 1/5*5/18

1/19/5 +1/38/7 + 1/57/16 - 1/95/18

5/19 + 7/38 + 16/57 -18/95

LCM =19

=5/19*19/19+7/18*19/19+16/57*19/19-18/95*19/19

=5+14+48-90

=67-90

= -23

hope it helps you...