一堆黄沙重1160千克,也就是重 吨 千克.
12÷ = :12=0.75= = %
0.75=6÷ = :12== %
1.75=7÷ ==28÷ =.
= ÷60=2:5= %= 填小数.
=3:4=36÷ = %