1 вариант. 1. Найдите значение выражения 1) \(\frac{24}{37} + \frac{8}{37} + \frac{11}{37}\) 2) \(3 \frac{7}{11} + 6 \frac{3}{11} - 5 \frac{5}{11}\) 3) \(1 - \frac{7}{15}\) 4) \(5 \frac{4}{8} - 2 \frac{5}{8}\) 5) \(6 \frac{3}{8} \cdot 1 \frac{11}{45}\) 6) \(9 : \frac{27}{28}\) 7) \(3 \frac{1}{5} \cdot 6 \frac{3}{7} : \frac{4}{7}\)

**1. Найдите значение выражения** 1) \(\frac{24}{37} + \frac{8}{37} + \frac{11}{37} = \frac{24 + 8 + 11}{37} = \frac{43}{37} = 1 \frac{6}{37}\) 2) \(3 \frac{7}{11} + 6 \frac{3}{11} - 5 \frac{5}{11} = (3+6-5) + (\frac{7}{11} + \frac{3}{11} - \frac{5}{11}) = 4 + \frac{7+3-5}{11} = 4 + \frac{5}{11} = 4 \frac{5}{11}\) 3) \(1 - \frac{7}{15} = \frac{15}{15} - \frac{7}{15} = \frac{15-7}{15} = \frac{8}{15}\) 4) \(5 \frac{4}{8} - 2 \frac{5}{8} = 5 \frac{1}{2} - 2 \frac{5}{8} = \frac{11}{2} - \frac{21}{8} = \frac{44}{8} - \frac{21}{8} = \frac{23}{8} = 2 \frac{7}{8}\) 5) \(6 \frac{3}{8} \cdot 1 \frac{11}{45} = \frac{51}{8} \cdot \frac{56}{45} = \frac{51 \cdot 56}{8 \cdot 45} = \frac{51 \cdot 7}{1 \cdot 45} = \frac{357}{45} = \frac{119}{15} = 7 \frac{14}{15}\) 6) \(9 : \frac{27}{28} = 9 \cdot \frac{28}{27} = \frac{9 \cdot 28}{27} = \frac{1 \cdot 28}{3} = \frac{28}{3} = 9 \frac{1}{3}\) 7) \(3 \frac{1}{5} \cdot 6 \frac{3}{7} : \frac{4}{7} = \frac{16}{5} \cdot \frac{45}{7} : \frac{4}{7} = \frac{16}{5} \cdot \frac{45}{7} \cdot \frac{7}{4} = \frac{16 \cdot 45 \cdot 7}{5 \cdot 7 \cdot 4} = \frac{4 \cdot 9 \cdot 1}{1 \cdot 1 \cdot 1} = 36\)