2/3除3/4 -2/3x3/4
问题描述:
2/3除3/4 -2/3x3/4
答
2/3÷3/4 -2/3x3/4=5/18
=2/3×4/3-2/3x3/4
=2/3(4/3+3/4)
=5/18