8 :15 = 24 :( ) 0.75 :1 = ( ):4 0.2 :1.5

问题描述:

8 :15 = 24 :( ) 0.75 :1 = ( ):4 0.2 :1.5
8 :15 = 24 :( ) 0.75 :1 = ( ):4
0.2 :1.5 = 2 :( ) 1/2 :3/4 = 2 :( )
2/5 :1/6 = ( ):5

8 :15 = 24 :(45 ) 0.75 :1 = (3 ):4
0.2 :1.5 = 2 :( 15) 1/2 :3/4 = 2 :(3 )
2/5 :1/6 = (12 ):5