Question

Найдите 30% значения выражения (6 45 - 2 34) : (2 1621 + 3 23)

Answer 1

$(6 frac{4}{5} - 2 frac{3}{4} ) div (2 frac{16}{21} + 3 frac{2}{3} ) = (4 frac{16 - 15}{20} ) div (5 frac{16 + 14}{21} ) = 4 frac{1}{20} div 5 frac{30}{21} = 4 frac{1}{20} div 6 frac{3}{7} = frac{81}{20} div frac{45}{7} = frac{81 times 7}{45 times 20} = frac{63}{100} \ frac{63}{100} times 0.3 = frac{63 times 3}{100 times 10} = frac{189}{1000}$

Answer 2

4 целых 16-15 там может 4 120

Answer 3

??