Question

Пожалуйста кому не сложно.​

Answer 1

$2) \: \: \: \: \: 1 \frac{5}{7} - 4 \frac{3}{13} \div 1 \frac{19}{26} = \frac{12}{7} - \frac{55}{13} \div \frac{45}{26} = \frac{12}{7} - \frac{55}{13} \times \frac{26}{45} = \frac{12}{7} - 11 \times \frac{2}{9} = \frac{12}{7} - \frac{22}{9} = \frac{84 - 198}{63} = - \frac{114}{63 } = - 1 \frac{51}{63}$

$4) \: \: \: \: \: \frac{47}{48} \div 3 \frac{13}{27} - \frac{13}{16} = \frac{47}{48} \div \frac{94}{27} - \frac{13}{16} = \frac{47}{48} \times \frac{27}{94} - \frac{13}{16} = \frac{1}{16} \times \frac{9}{2} - \frac{13}{16} = \frac{9}{32} - \frac{13}{16} = \frac{9 - 26}{32} = - \frac{17}{32}$