¿que numero tengo que sumar a los dos numeros de la fraccion [tex] \ frac{15}{135} [ / tex] para que se convierta en [tex] \ frac{2}{7} [ / tex]?
En resumen
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B15%2Bx%7D%7B135%2Bx%7D%3D%5Cfrac%7B2%7D%7B7%7D%20" /> <img src="https://tex.z-dn.net/?f=%207%2815%2Bx%29%3D2%28135%2Bx%29%20" /> <img src="https://tex.z-dn.net/?f=%20105%2B7x%3D270%2B2x" /> <img src="https://tex.z-dn.net/?
Bquionez
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B15%2Bx%7D%7B135%2Bx%7D%3D%5Cfrac%7B2%7D%7B7%7D%20" />
<img src="https://tex.z-dn.net/?f=%207%2815%2Bx%29%3D2%28135%2Bx%29%20" />
<img src="https://tex.z-dn.net/?f=%20105%2B7x%3D270%2B2x" />
<img src="https://tex.z-dn.net/?f=%207x-2x%3D270-105" />
<img src="https://tex.z-dn.net/?f=%205x%3D165" />
<img src="https://tex.z-dn.net/?f=%20x%3D%5Cfrac%7B165%7D%7B5%7D" />
<img src="https://tex.z-dn.net/?f=%20x%3D33" />
y así
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B15%2B33%7D%7B135%2B33%7D%3D%5Cfrac%7B2%7D%7B7%7D%20" />.
A) 5 / 2 B) 1. 7 C) 3 / 2 D) 3 / 2 E) - 3 / 2 G) 2.
Aqui esta la rpta = v.
16 / 5 = 3. 2 (solo dividimos) - 20 / 9 = - 2. 22222. (es periódico puro) 1 / 11 = 0. 090909. (periodico mixto) - 7 / 3 = 2. 333333(periódico puro).