Question

Привет. Помогите пожалуйста. 10 421-(4 1021+3 1921)=

Answer 1

1)4 10/21+3 19/21=94/21+82/21=176/21=8 8/21

2)10 4/21-8 8/21=214/4-176/21=38/21=1 17/21

Ответ:1 17/21

Answer 2

$10 frac{4}{21} - (4 frac{10}{21} + 3 frac{19}{21} ) = 10 frac{4}{21} - 7 frac{29}{21} = 10 frac{4}{21} - 8 frac{8}{21} = 1 frac{17}{21}$