52×1/9+47÷9+1/9
=52×1/9+47 X 1/9+1/9
=(52+47+1)X 1/9
=100 X1/9
=100/9
=11又9分之1（1/2-3/8）÷3/4呢？谢谢（1/2-3/8）÷3/4=1/8 X 4/3=1/6