Question

Lee cada ejercicio y subraya la respuesta corecta. observa el ejemplo ​

Answer 1

Verified answer

Explicación paso a paso:

18/

[tex] = \frac{3}{4} + \frac{2}{5} [/tex]

[tex] = \frac{15 + 8}{20} [/tex]

[tex] = \frac{23}{20} [/tex]

19/

[tex] = \frac{3}{5} + \frac{4}{5} [/tex]

[tex] = \frac{7}{5} [/tex]

20/

[tex] = \frac{9}{10} - \frac{3}{10} [/tex]

[tex] = \frac{6}{10} [/tex]

[tex] = \frac{3}{5} [/tex]

21/

[tex] = \frac{12}{20} + \frac{17}{20} [/tex]

[tex] = \frac{29}{20} k[/tex]

Espero te sirva saludos