Задание 3. Найдите значение выражения: 1) (9/16 + 2 3/8) · 4; 2) (4/9 − 3 1/15) · 9; 3) (2 3/4 + 2 1/5) · 16; 4) (1 11/12 − 3 7/8) · 4; 5) (1 3/4 + 2 4/5) · 30; 6) (1/13 − 2 3/4) · 26; 7) 1 8/17 : (12/17 + 2 7/11); 8) 3 4/9 : (1 5/9 − 4/7); 9) 4 7/8 : (2 3/4 + 1 10/19); 10) 1 1/12 : (1 13/18 − 2 5/9); 11) 3 1/2 : (1 4/15 + 2 9/10); 12) 4 1/4 : (2 7/10 − 3 1/8).

\((\frac{9}{16}+\frac{19}{8})\cdot4=\frac{47}{16}\cdot4=\frac{47}{4}\).

\((\frac{4}{9}-\frac{46}{15})\cdot9=-\frac{122}{45}\cdot9=-\frac{122}{5}\).

\((\frac{11}{4}+\frac{11}{5})\cdot16=\frac{99}{20}\cdot16=\frac{396}{5}\).

\((\frac{23}{12}-\frac{31}{8})\cdot4=-\frac{47}{24}\cdot4=-\frac{47}{6}\).

\((\frac{7}{4}+\frac{14}{5})\cdot30=\frac{91}{20}\cdot30=\frac{273}{2}\).

\((\frac{1}{13}-\frac{11}{4})\cdot26=-\frac{139}{52}\cdot26=-\frac{139}{2}\).

\(\frac{25}{17}:(\frac{12}{17}+\frac{29}{11})=\frac{25}{17}:\frac{625}{187}=\frac{11}{25}\).

\(\frac{31}{9}:(\frac{14}{9}-\frac{4}{7})=\frac{31}{9}:\frac{62}{63}=\frac{7}{2}\).

\(\frac{39}{8}:(\frac{11}{4}+\frac{29}{19})=\frac{39}{8}:\frac{325}{76}=\frac{57}{25}\).

\(\frac{13}{12}:(\frac{31}{18}-\frac{23}{9})=\frac{13}{12}:(-\frac{5}{6})=-\frac{13}{10}\).

\(\frac{7}{2}:(\frac{19}{15}+\frac{29}{10})=\frac{7}{2}:\frac{25}{6}=\frac{21}{25}\).

\(\frac{17}{4}:(\frac{27}{10}-\frac{25}{8})=\frac{17}{4}:(-\frac{17}{40})=-10\).