32*2.5*12.5% 7/9*4/11+7/9/11/4 怎么做?要简算的哦!
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32*2.5*12.5%
=(4×2.5)×(8×12.5%)
=10×1
=10
7/9*4/11+7/9/11/4
=7/9*4/11+7/9*4/11
=14/9*4/11
=56/99
=(4×2.5)×(8×12.5%)
=10×1
=10
7/9*4/11+7/9/11/4
=7/9*4/11+7/9*4/11
=14/9*4/11
=56/99
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展开全部
32*2.5*12.5%
=(2.5*4)*(8*12.5%)
=10*1
=10
7/9*4/11+7/9/11/4
=7/9x(4/11+7/11)
=7/9
=(2.5*4)*(8*12.5%)
=10*1
=10
7/9*4/11+7/9/11/4
=7/9x(4/11+7/11)
=7/9
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