Question

1/15+1/-25 what would be answer of this stepwise

Answer 1

1/15 +1/-25 =1/15 -1/25 now find L.C.M. of 15 and 25
5|15,25
3|3,5
5|1,5
|1,1 hence least common multiple of 15 and 25 is 5×3×5 =75 => 5/75 -3/75 => 2/75 .