Question

hey wanted help who knows this question tell me and who give answer I followed like and give 10 point
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Answer 1

hey mate

here is your answer

FIRST

$- \frac{2}{5} + \frac{5}{7} + \frac{4}{3} + \binom{ - 11}{7} \\ \frac{5}{7} - \frac{11}{7} - \frac{2}{3} + \frac{4}{3 } \\ - \frac{6}{7} + \frac{2}{3 } \\ lcm \: of \: 7 \: and \: 3 = 21 \\ - \frac{18 + 14}{21} \\ = - \frac{4}{21}$

SECOND

$\frac{2}{7} + \frac{ - 13}{20} + \frac{ - 11}{14} + \frac{3}{10} \\ \frac{2}{7} \times \frac{2}{2} = \frac{4}{14} \\ \frac{3}{10} \times \frac{2}{2} = \frac{6}{20} \\ \frac{4}{14} - \frac{13}{20} - \frac{11}{14} + \frac{6}{20} \\ \frac{4}{14} - \frac{11}{14 } + \frac{6}{20} - \frac{13}{20} = - \frac{7}{14} - \frac{7}{20}$

Answer 2

Nono it's best more convenient