Answer: 2/3 or 0.67
Explanation: Take each step at a time. 12 divided by 6 ( 12 / 6 = 2). Take the answer from your previous equation and continue. So 2 ( previous answer) times 5 = 10. And continue to use the previous answer until you finish each step. 10 divides by 4 + 1 ( 5 ) = 2. 2 divided by 2+1 (3) = 2/3 or 0.67 in decimal form