解:5/6÷5/3÷5/6+0.2=5/6÷5/6÷5/3+0.2=1÷5/3+0.2=1x3/5+1/54/5
5/6÷5/3*5/6+0.2=5/6*3/5*5/6+1/5=1/2*5/6+1/5=5/12+1/5=37/60
5/6÷5/3÷5/6+0.2=5/6÷5/6÷5/3+0.2=1x3/5+1/5=3/5+1/5=4/5
