Приведём дроби к общему знаменателю 9 и раскроем скобки
6/9 - 2/9 - х = 3/9
4/9 - х = 3/9
х = 4/9 - 3/9
х = 1/9
--------------------------
Проверка: 2/3 - (2/9 + 1/9) = 1/3
6/9 - 3/9 = 1/3
3/9 = 1/3
2 способ.
2/3 - (2/9 + х) = 1/3
2/9 + х = 2/3 - 1/3
2/9 + х = 1/3
х = 1/3 - 2/9
х = 3/9 - 2/9
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Приведём дроби к общему знаменателю 9 и раскроем скобки
6/9 - 2/9 - х = 3/9
4/9 - х = 3/9
х = 4/9 - 3/9
х = 1/9
--------------------------
Проверка: 2/3 - (2/9 + 1/9) = 1/3
6/9 - 3/9 = 1/3
3/9 = 1/3
2 способ.
2/3 - (2/9 + х) = 1/3
2/9 + х = 2/3 - 1/3
2/9 + х = 1/3
х = 1/3 - 2/9
х = 3/9 - 2/9
х = 1/9