5又1/2-(4/5+3.6×1/6)×1/4 怎么简便计算?
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![5又1/2-(4/5+3.6×1/6)×1/4 怎么简便计算?](/uploads/image/z/446030-62-0.jpg?t=5%E5%8F%881%2F2-%284%2F5%2B3.6%C3%971%2F6%29%C3%971%2F4+%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%3F)
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5又1/2-(4/5+3.6×1/6)×1/4 怎么简便计算?
5又1/2-(4/5+3.6×1/6)×1/4 怎么简便计算?
5又1/2-(4/5+3.6×1/6)×1/4 怎么简便计算?
5又1/2-(4/5+3.6×1/6)×1/4
=5.5-4/5x1/4-3.6x1/4x1/6
=5.5-1/5-0.9x1/6
=5.5-0.2-0.15
=5.15
11/2-(4/5-3.6*1/60)*1/4
=110/20-(1/5-0.9/6)
=110/20-(4/20-3/20)
=109/20
其中0.9/6=0.3/2=3/20