【2-(3.75×1又3分之1-2又5分之2÷0.6)】÷0.2
=【2-(15/4×4/3-12/5÷3/5)】÷(1/5)
=【2-(5-12/5×5/3)】÷(1/5)
=【2-(5-4)】÷(1/5)
=【2-1】÷(1/5)
=1÷(1/5)
=1×5
=5