5 вариант: 1) 11/14 − 8/7; 2) 1 − 7/30; 3) 1 13/16 + 6 3/8; 4) 7 5/10 − 1 2/12; 5) 7/8 × 13/16; 6) 1 1/15 × 1 1/20; 7) 8/9 : 3/6; 8) 3 1/6 : 2.

Question

Вопрос:

Фото задания: 5 вариант: 1) 11/14 − 8/7; 2) 1 − 7/30; 3) 1 13/16 + 6 3/8; 4) 7 5/10 − 1 2/12; 5) 7/8 × 13/16; 6) 1 1/15 × 1 1/20; 7) 8/9…

5 вариант: 1) 11/14 − 8/7; 2) 1 − 7/30; 3) 1 13/16 + 6 3/8; 4) 7 5/10 − 1 2/12; 5) 7/8 × 13/16; 6) 1 1/15 × 1 1/20; 7) 8/9 : 3/6; 8) 3 1/6 : 2.

Accepted Answer

\(\frac{11}{14}-\frac{8}{7}=\frac{11}{14}-\frac{16}{14}=-\frac{5}{14}\).
\(1-\frac{7}{30}=\frac{30}{30}-\frac{7}{30}=\frac{23}{30}\).
\(1\frac{13}{16}+6\frac{3}{8}=7+\frac{13}{16}+\frac{6}{16}=7\frac{19}{16}=8\frac{3}{16}\).
\(7\frac{5}{10}-1\frac{2}{12}=7\frac{1}{2}-1\frac{1}{6}=6+\frac{3}{6}-\frac{1}{6}=6\frac{1}{3}\).
\(\frac{7}{8}\cdot\frac{13}{16}=\frac{91}{128}\).
\(1\frac{1}{15}\cdot1\frac{1}{20}=\frac{16}{15}\cdot\frac{21}{20}=\frac{28}{25}=1\frac{3}{25}\).
\(\frac{8}{9}:\frac{3}{6}=\frac{8}{9}\cdot\frac{6}{3}=\frac{16}{9}=1\frac{7}{9}\).
\(3\frac{1}{6}:2=\frac{19}{6}\cdot\frac{1}{2}=\frac{19}{12}=1\frac{7}{12}\).

Ответ: 1) \(-\frac{5}{14}\); 2) \(\frac{23}{30}\); 3) \(8\frac{3}{16}\); 4) \(6\frac{1}{3}\); 5) \(\frac{91}{128}\); 6) \(1\frac{3}{25}\); 7) \(1\frac{7}{9}\); 8) \(1\frac{7}{12}\).