Respuesta :

30/90 simplifies to 1/3 because 90/30 = 3. 3/1=3. 
kaevras
To get from 30/90's numerator to 1/x's numerator, we divide by 30. Do this with the denominator too. So 90 divided by 30 = 3.

Therefore x is 3, making the fraction 1/3.

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