Question

769 Знайди значення виразів. 14 11/13+9 5/13- 8 9/13; 21 9/10- (8 7/10+9 6/10); 54 9/13-(23 5/13-18 9/13)​ це 5-9 класс

Answer 1

Ответ:

1)ответ:15 7/13

2)ответ:18/5

3)

Пошаговое объяснение:

ответ:50

Answer 2

Calculation of the Expression

To find the value of the expression 14 11/13 + 9 5/13 - 8 9/13; 21 9/10 - (8 7/10 + 9 6/10); 54 9/13 - (23 5/13 - 18 9/13), we can break it down into smaller calculations.

1. 14 11/13 + 9 5/13 - 8 9/13: - To add or subtract mixed numbers, we need to convert them into improper fractions. - Converting the mixed numbers to improper fractions: - 14 11/13 = (14 * 13 + 11) / 13 = 193/13 - 9 5/13 = (9 * 13 + 5) / 13 = 122/13 - 8 9/13 = (8 * 13 + 9) / 13 = 105/13 - Now, we can perform the addition and subtraction: - 193/13 + 122/13 - 105/13 = (193 + 122 - 105) / 13 = 210/13 = 16 2/13

2. 21 9/10 - (8 7/10 + 9 6/10): - Again, we convert the mixed numbers to improper fractions: - 21 9/10 = (21 * 10 + 9) / 10 = 219/10 - 8 7/10 = (8 * 10 + 7) / 10 = 87/10 - 9 6/10 = (9 * 10 + 6) / 10 = 96/10 - Now, we can perform the addition inside the parentheses: - 8 7/10 + 9 6/10 = 87/10 + 96/10 = (87 + 96) / 10 = 183/10 - Finally, we subtract the result inside the parentheses from 21 9/10: - 219/10 - 183/10 = (219 - 183) / 10 = 36/10 = 3 3/5

3. 54 9/13 - (23 5/13 - 18 9/13): - Converting the mixed numbers to improper fractions: - 54 9/13 = (54 * 13 + 9) / 13 = 711/13 - 23 5/13 = (23 * 13 + 5) / 13 = 304/13 - 18 9/13 = (18 * 13 + 9) / 13 = 243/13 - Now, we can perform the subtraction inside the parentheses: - 23 5/13 - 18 9/13 = 304/13 - 243/13 = (304 - 243) / 13 = 61/13 - Finally, we subtract the result inside the parentheses from 54 9/13: - 711/13 - 61/13 = (711 - 61) / 13 = 650/13 = 50

Therefore, the value of the given expression is: 16 2/13; 3 3/5; 50.

Please note that the above calculations are based on the provided expression and may not reflect the actual context or purpose of the expression.