Question

помогите СРОЧНО 543 *1,2,3,4*541,545

Answer 1

541.
1) $3 = 1 frac{5}{7} + 1 frac{2}{7} .$
2) $5 = 2 frac{1}{7} + 2 frac{6}{7} .$
3) $8=3 frac{4}{7} + 4 frac{3}{7} .$
4) $9 = 5 frac{3}{7} + 3 frac{4}{7}.$

543.
1) $12 frac{5}{9} - 7 frac{1}{6} = 12 frac{10}{18} - 7 frac{3}{18} =5 frac{7}{18} .$
2) $7 frac{1}{4} - 3 frac{7}{15} = frac{435}{60} - frac{208}{60} = frac{227}{60}=3 frac{47}{60} .$
3) $9 frac{5}{12} - 6 frac{2}{7} =9 frac{35}{84}- 6 frac{24}{84} = 3 frac{11}{84} .$
4) $4 frac{1}{6} -2 frac{4}{21} = 3 frac{49}{42}- 2 frac{8}{42} =1 frac{41}{42} .$