0.28:0.49 化简比,还有0.32;48
问题描述:
0.28:0.49 化简比,还有0.32;48
答
0.28:0.49
=(0.28×100):(0.49×100)
=28:49
=4:7
0.32;48
=32:4800
=2:300
=1:150