Question

(6 5/9+3 2/7) + (2 7/9+5 2/9- 4 1/3) = ???

Answer 1

$(6frac{5}{9} + 3frac{2}{7})+(2frac{7}{9}+5frac{2}{9} - 4 frac{1}{3}) =13 frac{32}{63}\\1) 6frac{5}{9} + 3frac{2}{7} = 6frac{35}{63} + 3 frac{18}{63} = 9 frac{53}{63}\\2) 2frac{7}{9} + 5 frac{2}{9} = 8\\3) 8 - 4frac{1}{3} = 3frac{2}{3}\\4) 9 frac{53}{63} + 3 frac{2}{3} = 9 frac{53}{63} + 3 frac{42}{63} = 12frac{95}{63} = 13 frac{32}{63}$

Ответ: $13 frac{32}{63}$