Respuesta :

konrad509
[tex]2\dfrac{5}{7}=\dfrac{19}{7}[/tex]

So the reciprocal is [tex]\dfrac{7}{19}[/tex]
DeanR
[tex]2 \dfrac 5 7 = \dfrac{2 \times 7 + 5}{7} = \dfrac{19}{7}[/tex]

The reciprocal of x is 1/x, what you get when you swap numerator and denominator.  So here the reciprocal is

[tex]\dfrac{7}{19}[/tex]

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