75*60% 24*3分之5 +0.6,

题目

75*60% 24*3分之5 +0.6,
75*60%+24*5分之3 +0.6,

答案

=75×0.6+24×0.6+1×0.6
=0.6(75+24+1)
=0.6×100
=60