0.15/0.25+0.75*1.2简便方法？

Question

如题所述

Answer 1

0.15/0.25 +0.75x1.2
=0.15÷(1/4)+(3/4)x1.2
=0.6+(3/4)x1.2
=0.6x(1+1.5)
=0.6x2.5
=1.5本回答被网友采纳

Answer 2

=0.6+0.75×1.2=1.5