√45+√108+√(4/3)-√125
=√(9×5)+√36×3+√4÷√3-√(25×5)
=3×√5+6×√3+2÷√3-5×√5
=3√5+6√3+2√3÷3-5√5
=6√3+(2/3)√3-2√5
=(20/3)√3-2√5