1/7-11/2:(3×2+5)/4-(2-1×7)/7
= 1/7-11/2: 11/4 +5/7
= 1/7-11/2 ×4/11 +5/7
=1/7 -2 +5/7
=(1 -2×7 + 5)/7
=(1-14+5)/7
=-8/7➡ANS
❇NOTE:
↪Same rule is applied here like in the question before....
▶solve ( ) bracket first
▶ : means ratio sign and is same as / sign
▶DMAS rule is followed throughout the question
▶11/2: 11/4=11/2× 4/11 ...here ratio sign can be converted into Multiplication sign by reciprocating the term after : sign