Question

Помогите пожалуйста выполните действия 1) 11/12 ÷ 7/24 ÷ 2 2/21 , 2) 13 1/2 × 1 1/2 ÷ 2 1/4 , 3) 13/14 ÷ 1 4/21 ÷ 13/5 , 4) 2 16/19 × 2 1/9 ÷ 3 3/8. Срочно помогите

Answer 1

1) $frac{11}{12} : frac{7}{24} : frac{44}{21} = 1,5$

1. $frac{11}{12} : frac{7}{24} = frac{11}{12} * frac{24}{7} = frac{22}{7}$

2. $frac{22}{7} * frac{21}{44} = frac{3}{2} = 1,5$

2) $frac{27}{2} : frac{3}{2} : frac{9}{4} = 4$

1. $frac{27}{2} * frac{2}{3} = 9$

2. $frac{9}{1} * frac{4}{9} = 4$

3) $frac{13}{14} : frac{25}{21} : frac{13}{5} = 0,3$

1. $frac{13}{14} * frac{21}{25} = frac{39}{50}$

2. $frac{39}{50} * frac{5}{13} = frac{3}{10} = 0,3$

4) $frac{54}{19} * frac{19}{9} : frac{27}{8} = 1frac{21}{27}$

1. $frac{54}{19} * frac{19}{9} = 6$

2. $frac{6}{1} * frac{8}{27} = frac{48}{27} = 1frac{21}{27}$