()/16=21÷()=0.75=():()=()%
()÷16=()分之15=0.75=21÷()=12分之()
9÷()=()/16=0.75=15/()=()/()
0.75=()除以16=()%=27分之()=21:()
0.75=几分之15=():8=21:()=()÷60数学
几分之几=0.75=():16=9÷()=()%
()分之()(填最简分数)=0.75=():16=27÷()=()%
()÷16=15/()=()/4=9/()=0.75
9分之4×( )=8分之7÷( )=( ):16=0.75=( )分之( ).
15;( )=0.75=21/( )=16分之( )=( )%
( )÷16=21/()=0.875=()%=7:()
()比16=0.75=6÷()=几分之15
75/()=()/40=9:()=3/()=()/16=0.75