
(0·12乘0·13乘0·14)除以(0·36✖️0·39✖️0·42)等于多少用简便?
1个回答
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(0.12×0.13×0.14)÷(0.36×0.39×0.42)
=0.12×0.13×0.14÷0.36÷0.39÷0.42
=(0.12÷0.36)×(0.13÷0.39)×(0.14÷0.42)
=1/3×1/3×1/3
=1/27
=0.12×0.13×0.14÷0.36÷0.39÷0.42
=(0.12÷0.36)×(0.13÷0.39)×(0.14÷0.42)
=1/3×1/3×1/3
=1/27
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