Respuesta :

lily735

Answer:

it is not correct because

[tex]3 \times \frac{7}{9} [/tex]

is like saying

[tex] \frac{3}{1} \times \frac{7}{9} [/tex]

which would be

[tex] \frac{21}{9} [/tex]

but since it is an improper fraction you have to change it to a mixed fraction which would be

[tex] 2\frac{3}{9} [/tex]

which can be simplified to

[tex] 2\frac{1}{3} [/tex]

Step-by-step explanation:

hope this was helpful

ChefTopeau

No: first of all, 21/27 is equivalent to 7/9, because you multipied both numerator and denominator by 3.

Secondly, you may write 3 as 3/1, and by doing so it should be clear that you have to multiply numerators and numerator among themselves:

[tex]3\cdot \dfrac{7}{9}=\dfrac{3}{1}\cdot \dfrac{7}{9}=\dfrac{3\cdot 7}{9\cdot 1}=\dfrac{21}{9}=\dfrac{7}{3}[/tex]

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