Question

Выполните деление
1)2/3b:(-2/5b)
2) (-1,69n):(1,3n)​

Answer 1

Ответ:

$1) \frac{2}{3} b \div ( - \frac{2}{5} b) \\ - \frac{2}{3} b \div \frac{2b}{5} \\ - \frac{2}{3} b \times \frac{5}{2b} \\ - \frac{1}{3} \times 5 \\ - \frac{5}{3} \\ —————— \\ 2)( - 1.69n) \div (1.3n) \\ - \frac{169}{100} n \div ( \frac{13n}{10} ) \\ - \frac{169}{100} n \div \frac{10}{13n} \\ - \frac{169}{100} n \times \frac{10}{13n} \\ - \frac{13}{10}$