Question

please help me with following

Answer 1

5/6 - 3/5=( 25 - 18)/30 ( taking LCM)
=7/30.

1/5 - 2
1 -10)/5 ( LCM)
= -9/5
hope it helped

Answer 2

5/6-3/5= lcm of 6 and 5 is 30
25-18/30=7/30

1/5-2= lcm=5
5-10/5=-5/5=-1