27÷9/4×(-4/9)+4-4×(-1/3)
问题描述:
27÷
×(-9 4
)+4-4×(-4 9
) 1 3
答
原式=27×
×(-4 9
)+4+4 9
4 3
=-
+4+16 3
4 3
=-4+4
=0.