Respuesta :

Correct option is C. The common multiplier in the proportion 3/5 = 12/20 is 4.

If we multiply and divide the fraction by 4, we will get the desired output

= [tex]\frac{3}{5}[/tex] × [tex]\frac{4}{4}[/tex] = [tex]\frac{12}{20}[/tex]

So, the common multiplier is 4

What is fraction?

fraction is a number expressed as a quotient, in which a numerator is divided by a denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator.

To learn more about common multiplier from the given link

https://brainly.com/question/16054958

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