Question

Divede the sum of 2/3 and -1/7 by their difference ​

Answer 1

Step-by-step explanation:

$\frac{2}{3} + \frac{ - 1}{7} = \frac{14 + - 3}{21} \\ \\ = \frac{14 - 3}{21 } = \frac{11}{21} . \\ \\ sum \: of \: these \: numbers \: = \frac{11}{21} . \\ \\ \\ \\ \frac{2}{3} - \frac{ - 1}{7} = \frac{14 - - 3}{21} \\ \\ = \frac{14 + 3}{21} = \frac{17}{21} . \\ \\ difference \: between \: these \: numbers \: = \frac{17}{21} .$

$\frac{11}{21} \div \frac{17}{21 } = \frac{11}{21} \times \frac{21}{17} \\ \\ = \frac{231}{357.}$

hope it helps you out.