[5/3-(1/3-1/6+5/12)×2.4]÷5

问题描述:

[5/3-(1/3-1/6+5/12)×2.4]÷5

[5/3-(1/3-1/6+5/12)×2.4]÷5
=5/3*1/5-(1/3*2.4-1/6*2.4+5/12*2.4)/5
=1/3-(0.8-0.4+1)/5
=1/3-7/25
=4/65