1/3÷5+2/3x1/5=1/3x1/5+2/3x1/5=(1/3+2/3)x1/5=1x1/5=1/5
1/3÷5+2/3 * 1/5=1/3*1/5+2/3*1/5=1/5 * (1/3+2/3)=1/5
1/3÷5+2/3x1/5=1/3x1/5+2/3x1/5=(1/3+2/3)x1/5=1x1/5=1/5