( ( 4/5 + 8/3 ) ÷ ( - 4/5) + 2 2/3) × 1 5/7 =-3 1/18
4/5 + 8/3=(4*3+8*5)/15=52/15
52/15:(-4/5)=-(52*5)/15*4=-13/3
-13/3+2 2/3=-13/3+8/3=-5/3
-5/3*1 5/6=-5/3*11/6=-55/18=-3 1/18
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( ( 4/5 + 8/3 ) ÷ ( - 4/5) + 2 2/3) × 1 5/7 =-3 1/18
4/5 + 8/3=(4*3+8*5)/15=52/15
52/15:(-4/5)=-(52*5)/15*4=-13/3
-13/3+2 2/3=-13/3+8/3=-5/3
-5/3*1 5/6=-5/3*11/6=-55/18=-3 1/18