1/9-5/12×4/5÷3怎么用递等式算?
问题描述:
1/9-5/12×4/5÷3怎么用递等式算?
答
1/9-5/12×4/5÷3
=1/9-1/3÷3
=1/9-1/3×1/3
=1/9-1/9
=0