(-5/6+3/8)*(-24)-(-7)+(-0.75)*5/14用简便方法

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(-5/6+3/8)*(-24)-(-7)+(-0.75)*5/14用简便方法(-5/6+3/8)*(-24)-(-7)+(-0.75)*5/14用简便方法(-5/6+3/8)*(-24)-(-7)+

(-5/6+3/8)*(-24)-(-7)+(-0.75)*5/14用简便方法
(-5/6+3/8)*(-24)-(-7)+(-0.75)*5/14用简便方法

(-5/6+3/8)*(-24)-(-7)+(-0.75)*5/14用简便方法
(-5/6+3/8)*(-24)-(-7)+(-0.75)*5/14
=-5/6*(-24)+(3/8)*(-24)+7-(3/4)*(5/14)
=20-9+7-(15/56)
=17又41/56