hmmm . my original posted answer was 1. Based on multiplication before division.
Rewriting though 6x1/2x3 =9 so
However according to Wolfram Alpha "implied multiplication without parentheses precedes division" so that makes the answer 1.
The overall issue here is a poorly written problem but given its parameters the correct reading, by the accepted standards I know and those I've re-checked, is 6÷ (2（2+1）)
Mulder: "So you're agreeing with me?"
Scully "No! You're bat-crap crazy."
Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that. - Martin Luther King, Jr.