Question

Теңдеуді шеш: 1 1/3:y=5 3/7:16 2/7

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Answer 1

Ответ:

4

Пошаговое объяснение:

$1\frac{1}{3} \div y=5\frac{3}{7} \div16\frac{2}{7} \\ \\1\frac{1}{3}\times 16\frac{2}{7}=5\frac{3}{7} \times y\\ \\\frac{1\times3+1}{3} \times\frac{16\times7+2}{7} =\frac{5\times7+3}{7} \times y\\ \\\frac{4}{3} \times\frac{114}{7} =\frac{38}{7} \times y\\ \\4\times\frac{38}{7} =\frac{38}{7} \times y\\ \\\frac{152}{7} =\frac{38}{7} \times y\\ \\y = \frac{152}{7} \div\frac{38}{7} =\frac{152}{7} \times\frac{7}{38} \\ \\y = \frac{4}{1} \times \frac{1}{1} =\boxed{4}$