Question

ayudaaaa porfis necesito terminarlo​

Answer 1

¡Holaaa!

Respuesta:

a) 0.94

b) 2.16

c) 0.18

Explicación paso a paso:

a)  $\frac{15}{7}+\frac{2}{5}\cdot \frac{1}{3}-\frac{4}{3}$

    ${Agrupamos\:terminos\:semejantes:}\\\\\frac{2}{5}\cdot \frac{1}{3}-\frac{4}{3}+\frac{15}{7}\\\\\frac{2}{15}-\frac{4}{3}+\frac{15}{7}\\\\\mathrm{Minimo\:comun\:multiplo\:de\: 15, 13 \ y\: 7}\\\\\frac{14-140+225}{105}\\\\\frac{99}{105}\\\\\frac{33}{35}\\\\0.94$

b) $\frac{15}{9}+\frac{7}{8}\:.\:\left(3-\frac{9}{4}\right)-\frac{1}{6}$

   $\frac{5}{3}+\frac{7}{8}\cdot \frac{3}{4}-\frac{1}{6}\\\\\frac{5}{3}+\frac{21}{32}-\frac{1}{6}\\\\\frac{69}{32}\\\\2.16$

c) $\frac{7}{8}\div \frac{25}{8}+\left(\frac{9}{4}\cdot \frac{6}{5}-\frac{14}{5}\right)$

   $\frac{7}{8}\div \frac{25}{8}+\frac{27}{10}-\frac{14}{5}\\\\Minimo \ comun \ multiplo\ de: 10 \ y \ 5\\\\\frac{7}{8}\div \frac{25}{8}+\frac{27-28}{10}\\\\\\frac{7}{8}\div \frac{25}{8}-\frac{1}{10}\\\\\frac{7}{25}-\frac{1}{10}\\\\\frac{9}{50}\\\\0.18$