6 вариант: 1) 2/3 + 1/2; 2) 6 − 1/20; 3) 3 7/16 + 8 3/4; 4) 2 9/16 − 3/8; 5) 5/12 × 4/5; 6) 4 1/8 × 3/10; 7) 1/9 : 1/6; 8) 2 1/6 : 11.

Question

Вопрос:

Фото задания: 6 вариант: 1) 2/3 + 1/2; 2) 6 − 1/20; 3) 3 7/16 + 8 3/4; 4) 2 9/16 − 3/8; 5) 5/12 × 4/5; 6) 4 1/8 × 3/10; 7) 1/9 : 1/6; 8)…

6 вариант: 1) 2/3 + 1/2; 2) 6 − 1/20; 3) 3 7/16 + 8 3/4; 4) 2 9/16 − 3/8; 5) 5/12 × 4/5; 6) 4 1/8 × 3/10; 7) 1/9 : 1/6; 8) 2 1/6 : 11.

Accepted Answer

\(\frac{2}{3}+\frac{1}{2}=\frac{4}{6}+\frac{3}{6}=\frac{7}{6}=1\frac{1}{6}\).
\(6-\frac{1}{20}=\frac{120}{20}-\frac{1}{20}=\frac{119}{20}=5\frac{19}{20}\).
\(3\frac{7}{16}+8\frac{3}{4}=11+\frac{7}{16}+\frac{12}{16}=11\frac{19}{16}=12\frac{3}{16}\).
\(2\frac{9}{16}-\frac{3}{8}=2\frac{9}{16}-\frac{6}{16}=2\frac{3}{16}\).
\(\frac{5}{12}\cdot\frac{4}{5}=\frac{1}{3}\).
\(4\frac{1}{8}\cdot\frac{3}{10}=\frac{33}{8}\cdot\frac{3}{10}=\frac{99}{80}=1\frac{19}{80}\).
\(\frac{1}{9}:\frac{1}{6}=\frac{1}{9}\cdot6=\frac{2}{3}\).
\(2\frac{1}{6}:11=\frac{13}{6}\cdot\frac{1}{11}=\frac{13}{66}\).

Ответ: 1) \(1\frac{1}{6}\); 2) \(5\frac{19}{20}\); 3) \(12\frac{3}{16}\); 4) \(2\frac{3}{16}\); 5) \(\frac{1}{3}\); 6) \(1\frac{19}{80}\); 7) \(\frac{2}{3}\); 8) \(\frac{13}{66}\).