Respuesta :

simply cross-multiply about,

[tex]\bf \cfrac{1}{2}=\cfrac{x}{4}\implies 4\cdot 1=2\cdot x\implies 4=2x\implies \cfrac{4}{2}=x\implies 2=x[/tex]
2/4 because is you multiply the numerator and denominator by 2/2 you will get 2/4

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