3-8/9×6/5÷32/3 (1-1/4×8/9)×9/7 (5/6+1/3)÷(3/4-2/3)=3-1/10 =(1-2/9)X9/7 =7/6÷1/12=2又9/10 =1 =143/4÷(1/2-1/3)÷3/2=3/4÷1/6÷3/2=3