[√27+√(1/3)]-[√12-√(1/5)+√45]=[3√3+√3/3]-[2√3-√5/5+3√5]=3√3+√3/3-2√3+√5/5-3√5=√3+√3/3+√5/5-3√5=4√3/3-14√5/5
[√27+√(1/3)]-[√12-√(1/5)+√45]=[3√3+(√3)/3]-[2√3-(√(5)/5+3√5]=3√3+(√3)/3-2√3+(√5)/5-3√5=(4√3)/3-(14√5)/5