():20=():0.8=24*()=()%=()折
20/( )=8:( )=几分之几=0.8=( )%=( )折
()/()=0.8=()分之28=():45=()%=()折
()除以20=12/()=24除以()=()%=二成=()折
( ):20=几分之12=24÷( )=( )%=0.2=( )折
( ):20=( )\0.8=( )/15=( )\20
10分之8=5分之4=0.8:20=4%=()折=()(填小数)
( ):20=( )分之12=24÷( )=()%=()折
( ):20=24: ( )=几分之12=0.8=( )%.
⒈ ( )∶20 = 24∶( )= ( )分之12 = 0.8 = ( )%
0.8=20分之几=几分之24=【 】÷15=【 】%
1.( ):20=(8 )/( )【几分之8】=0.8=( )/15=(20)/( )【几分之20】=%=( )折
______:0.8=( )24