问题标题:
5/18x1/4x9/10(1/4+2/9)x367/11x3/8x4/9简便计算哈~
问题描述:

5/18x1/4x9/10(1/4+2/9)x367/11x3/8x4/9简便计算哈~

刘敏层回答:
  5/18x1/4x9/10   =(5/18x9/10)x1/4   =1/4x1/4   =1/16   (1/4+2/9)x36   =1/4x36+2/9x36   =9+8   =17   7/11x3/8x4/9   =7/11x(3/8x4/9)   =7/11x1/6   =7/66
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