Question

допоможіть будь ласка!!!​

Answer 1

$(( - 2 \frac{1}{3} ) - ( - 7 \frac{1}{7} ) )+ (7 \frac{3}{7} + ( - 10 \frac{2}{3} )) =1 \frac{4}{7} \\(- 2 \frac{1}{3} ) - ( - 7 \frac{1}{7} ) = - 2 \frac{7}{21} + 7 \frac{3}{21} = - 2 \frac{7}{21} + 6 \frac{24}{21} = 4 \frac{17}{21} \\ 7 \frac{3}{7} + ( - 10 \frac{2}{3}) = 7 \frac{9}{21} - 10 \frac{14}{21} = - 3 \frac{5}{21} \\ 4 \frac{17}{21} - 3 \frac{5}{21} = 1 \frac{12}{21} = 1 \frac{4}{7}$