Respuesta :

Answer:

1.

[tex] \frac{91}{2} [/tex]

2.

[tex] \frac{121}{4} [/tex]

3.

[tex] \frac{226}{3} [/tex]

Step-by-step explanation:

1.

[tex] \frac{4}{1} \times \frac{5}{1} \\ 4 \times 5 \\ 20[/tex]

2.

[tex] \frac{3}{4} \times \frac{7}{6} \\ 18 \times 28 \\ 504[/tex]