Question

please solve 7 number?​

Answer 1

Answer:

[tex]sum \: of \: \frac{ - 18}{51} and \frac{2}{17} \\ lcm \: of \: denominators = 51 \\ = > \frac{ - 18}{51} + \frac{2}{17} = \frac{ - 18 + 6}{51} = \frac{ - 12}{51} \\ sum \: of \: \frac{1}{85} and \: \frac{ - 2}{5} \\ lcm \: of \: denominators = 85 \\ = > \frac{1}{85} + \frac{ - 2}{5} = \frac{1 + ( - 34)}{85} \\ = \frac{1 - 34}{85} = \frac{ - 33}{85}

subtraction =-12/51-(-33/85)

LCM OF DENOMINATORS = 255

=>-12/51+33/85=-60+99/255=39/255