2. Выполните: 1) $6\frac{5}{13}+2\frac{8}{13}$; 2) $5\frac{4}{7}+3\frac{6}{7}$; 3) $1-\frac{15}{19}$; 4) $8-3\frac{4}{9}$; 5) $7\frac{3}{8}-2\frac{5}{8}$; 6) $14\frac{15}{32}-9\frac{19}{32}$.

Question

$Фото задания: 2. Выполните: 1) $6\frac{5}{13}+2\frac{8}{13}$; 2) $5\frac{4}{7}+3\frac{6}{7}$; 3) $1-\frac{15}{19}$; 4)…$ Фото задания

Accepted Answer

$6\frac{5}{13}+2\frac{8}{13}=8\frac{13}{13}=9$.
$5\frac{4}{7}+3\frac{6}{7}=8\frac{10}{7}=9\frac{3}{7}$.
$1-\frac{15}{19}=\frac{19}{19}-\frac{15}{19}=\frac{4}{19}$.
$8-3\frac{4}{9}=7\frac{9}{9}-3\frac{4}{9}=4\frac{5}{9}$.
$7\frac{3}{8}-2\frac{5}{8}=6\frac{11}{8}-2\frac{5}{8}=4\frac{6}{8}=4\frac{3}{4}$.
$14\frac{15}{32}-9\frac{19}{32}=13\frac{47}{32}-9\frac{19}{32}=4\frac{28}{32}=4\frac{7}{8}$.

Ответ: 1) 9; 2) $9\frac{3}{7}$; 3) $\frac{4}{19}$; 4) $4\frac{5}{9}$; 5) $4\frac{3}{4}$; 6) $4\frac{7}{8}$.

2. Выполните: 1) \(6\frac{5}{13}+2\frac{8}{13}\); 2) \(5\frac{4}{7}+3\frac{6}{7}\); 3) \(1-\frac{15}{19}\); 4) \(8-3\frac{4}{9}\); 5) \(7\frac{3}{8}-2\frac{5}{8}\); 6) \(14\frac{15}{32}-9\frac{19}{32}\).