Question

Пожалуйста решите 2 уравнения с дробями

Answer 1

Ответ:

⁶/60-Х=¹³/60-⁹/60

⁶/60-Х=⁴/60

Х=⁶/60+⁴/60

Х=¹⁰/60

⁸/100+Х=²⁰/100-⁵/100

⁸/100+Х=¹⁵/100

Х=¹⁵/100-⁸/100

Х=⁷/100

Answer 2

Ответ:

$\frac{13}{60} + \frac{6}{60} - x = \frac{9}{60} \\ \frac{19}{60} - x = \frac{9}{60} \\ x = \frac{19 - 9}{60} \\ x = \frac{10 \div 10}{60 \div 10} = \frac{1}{6}$

$\frac{5}{100} + \frac{8}{100} + x = \frac{ 20 }{100} \\ \frac{13}{100} + x = \frac{20}{100} \\ x = \frac{20 -1 3}{100} \\ x = \frac{7}{20}$