Question

resuñucion de m= (7)/(4)x(3)/(7)x(28)/(21)

Answer 1

BIEN VEAMOS:

$\boxed {\displaystyle \mathbb {PROCEDIMIENTO:}}$

$\left(7\right)/\left(4\right)\left(3\right)/\left(7\right)\left(28\right)/\left(21\right)$

$M=\dfrac{\left(7\right)}{\left(4\right)}\left(3\right)/\left(7\right)\left(28\right)/\left(21\right)$

$M=\dfrac{21}{4}/\left(7\right)\left(28\right)/\left(21\right)$

$M=\dfrac{\dfrac{21}{4}}{\left(7\right)}\left(28\right)/\left(21\right)$

$M=\dfrac{\dfrac{21}{4}}{7}\cdot \:28 / (21)$

$M=\dfrac{21}{4\cdot \:7}\cdot \:28 / (21)$

$M=\dfrac{7\cdot \:3}{4\cdot \:7}\cdot \:28 / (21)$

$M=\dfrac{3}{4}\cdot \:28 / (21)$

$M=\dfrac{3}{4}\cdot \dfrac{28}{1} /\left(21\right)$

$M=\dfrac{3\cdot \:28}{4\cdot \:1} /\left(21\right)$

$M=\dfrac{3\cdot \:28}{4} /(21)$

$=21/\left(21\right)$

$M=\dfrac{21}{\left(21\right)}$

M = 1