6/7 ÷ [(11/12 - 3/4) × 9/14]= 6/7 ÷ [(11/12 - 9/12) × 9/14]= 6/7 ÷ (2/12 × 9/14)= 6 ÷ (2/12 × 9/2)= 3 ÷ (1/12 × 9/2)= 3 ÷ (3/8)= 8
