化简比128:340.54:2.70.4米:60厘米.

更新时间:
问题描述:

化简比

128:34

0.54:2.7

0.4米:60厘米.

丁云回答:

  (1)128:34

  =(128÷2):(34÷2)

  =64:17;

  (2)0.54:2.7

  =(0.54÷0.54):(2.7÷0.54)

  =1:5;

  (3)0.4米:60厘米

  =40厘米:60厘米

  =40:60

  =(40÷20):(60÷20)

  =2:3.

相关推荐