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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