Question

помогите пожаоуйста, начиная с 46 номера.

Answer 1

$0:5frac{1}{19} =0\\ (5frac{1}{19} - frac{1}{19} )cdot 6=5cdot 6=30\\ 10frac{1}{3} :2 frac{1}{3}= frac{31}{3} : frac{7}{3}= frac{31}{7} =4frac{3}{7}\\ frac{2}{3} cdot frac{6}{7} : frac{4}{7} = frac{2cdot 6cdot 7}{3cdot 7cdot 4} = frac{12}{12}=1\\ frac{3}{8} cdot frac{1}{9} : frac{5}{16} = frac{3cdot 1cdot 16}{8cdot 9cdot 5}= frac{2}{15}$

$frac{13}{14} cdot frac{7}{26} : frac{3}{8}= frac{13cdot 7cdot 8}{14cdot 26cdot 3} = frac{2}{3}\\( 2frac{2}{3} +1 frac{5}{6}):1 frac{1}{2}=( frac{8}{3} + frac{11}{6} ): frac{3}{2} = frac{27}{6} cdot frac{2}{3}=3$