化简比,①七分之六比21①七分之六比21②0.24比8_数学解答

化简比,①七分之六比21
①七分之六比21
②0.24比8

人气：174 ℃　时间：2020-01-28 07:10:55

解答

6/7 :21
= 2 :7*7
= 2 :49
= 2/49
0.24 :8
= 24 :800
= 3 :100
=3/100