Question

9/20-[1\5{1/4+(5/6-1/3+1/2)}]

Answer 1

=> 9/20-[1/5{1/4+((5-2+3)/6)}]
=> 9/20-[1/5{1/4+1}]
=> 9/20-[1/5×5/4]
=> 9/20-1/4
=> (9-5)/20
=> 4/20
=> 1/5

i hope the ans is right..

: )

Answer 2

Correction:

Given:

9/20 - [1/5 + {1/4 + (5/6 - 1/3 + 1/2)}]

LCM of 3 and 2 is 6.

=> 9/20 - [1/5 + {1/4 + (5/6 - 3+2/6)}]

=> 9/20 - [1/5 + {1/4 + (5/6 - 5/6)}]

=> 9/20 - [1/5 + {1/4 + (0)}]

=> 9/20 - [1/5 + {1/4 + 0}]

=> 9/20 - [1/5 + {1/4}]

=> 9/20 - [1/5 + 1/4}]

LCM of 5 and 4 is 20.

=> 9/20 - [4+5/20]

=> 9/20 - [9/20]

=> 9/20 - 9/20

=> 0 Ans.