9分之X等于0.7分之0.3怎么解比例?

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9分之X等于0.7分之0.3怎么解比例?9分之X等于0.7分之0.3怎么解比例?9分之X等于0.7分之0.3怎么解比例?9分之X等于0.7分之0.3x/9=0.3/0.7x/9=3/7x=3/7×9x

9分之X等于0.7分之0.3怎么解比例?
9分之X等于0.7分之0.3怎么解比例?

9分之X等于0.7分之0.3怎么解比例?
9分之X等于0.7分之0.3
x/9=0.3/0.7
x/9=3/7
x=3/7×9
x=27/7

x:9=0.3:0.7 => 0.7x=0.3*9 => 0.7x=2.7 => x=27/7

x/9=0.3/0.7
0.7x=0.3*9
0.7x=2.7
x=2.7/0.7
x=7分之27