УМОЛЯЮ ПОМОГИТЕ! СРОЧНО!! 3/7 + 5/6 = 5/14 × 7/30 = 11/12 - 7/8 = 1 8/25 × 1 4/11 = 5/9 ÷...

Решите задачу:

$1) \frac{3}{7} + \frac{5}{6} = \frac{18}{42} + \frac{35}{42} = \frac{53}{45} = 1 \frac{8}{45}$

$2) \frac{5}{14} \times \frac{7}{30} = \frac{1}{12}$

$\frac{11}{12} - \frac{7}{8} = \frac{22}{24} - \frac{21}{24} = \frac{1}{24}$

$1 \frac{8}{25} \times 1 \frac{4}{11} = \frac{33}{25} \times \frac{15}{11} = \frac{9}{5} = 1 \frac{4}{5} = \\ = 1.8$

$\frac{5}{9} \div \frac{10}{27} = \frac{5}{9} \times \frac{27}{10} = \frac{3}{2} = 1 \frac{1}{2} = 1.5$

$4 \frac{4}{9} \div 1 \frac{2}{3} = \frac{40}{9} \times \frac{3}{5} = \frac{8}{3} = 2 \frac{2}{3}$

$14 - (6 \frac{8}{16} + 3 \frac{4}{16} ) = 14 - 9 \frac{12}{16} = \\ = 13 \frac{16}{16} - 9 \frac{12}{16} = 4 \frac{4}{16} = 4 \frac{1}{4}$

$7 \frac{1}{3} \times ( \frac{9}{20} \div \frac{1}{30} ) = 7 \frac{1}{3} \times \\ ( \frac{9}{20} \times \frac{30}{1} ) = 7 \frac{1}{3} \times \frac{27}{2} =$

$\frac{22}{3} \times \frac{27}{2} = 99$