(5.4*0.75*1.3)\(2.5*3.9*0.27)简便运算,
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(5.4*0.75*1.3)\(2.5*3.9*0.27)简便运算,(5.4*0.75*1.3)\(2.5*3.9*0.27)简便运算,(5.4*0.75*1.3)\(2.5*3.9*0.27)简便运
(5.4*0.75*1.3)\(2.5*3.9*0.27)简便运算,
(5.4*0.75*1.3)\(2.5*3.9*0.27)简便运算,
(5.4*0.75*1.3)\(2.5*3.9*0.27)简便运算,
(5.4*0.75*1.3)\(2.5*3.9*0.27)
=（5.4/0.27）*（0.75/2.5）*（1.3/3.9）
=20*0.3*1/3
=6*1/3
=2