Question

3by 5 - ( 1by 6+ 5by 18)

Answer 1

7/45 is the answer of the question

Answer 2

3/5-(1/6+1/8)

lcm of 6,8 is 24

so,we solve the one inside the brackets first using BODMAS rule

1*4/6*4 +5*3/8*3 = 4/24 + 15/24 =19/24

3/5 - 19/24

lcm of 5 and 24 is 120

3*24/5*24 - 19*5/24*5  =   72/120 -  90/120

                                     =  -18/120   = -3/20