Question

2 3/4 : ( 1 1/2 - 2/5) + (3/4 + 5/6) : 3 1/6 Решите пожалуйста

Answer 1

Не знаю , вроде правильно , но что-то ответ какой-то странный

Answer 2

Calculation

To solve the expression 2 3/4 : (1 1/2 - 2/5) + (3/4 + 5/6) : 3 1/6, we can follow the order of operations (PEMDAS/BODMAS) to simplify the expression step by step.

1. Simplify the addition and subtraction within parentheses: - (1 1/2 - 2/5) = 3/2 - 2/5 = (15/10) - (4/10) = 11/10 - (3/4 + 5/6) = (9/12 + 10/12) = 19/12

2. Simplify the division: - 2 3/4 : 11/10 + 19/12 : 3 1/6 - Convert the mixed numbers to improper fractions: - 2 3/4 = (2 * 4 + 3) / 4 = 11/4 - 3 1/6 = (3 * 6 + 1) / 6 = 19/6 - Perform the divisions: - (11/4) / (11/10) + (19/12) / (19/6) - Dividing by a fraction is the same as multiplying by its reciprocal: - (11/4) * (10/11) + (19/12) * (6/19) - Cancel out common factors: - 10/1 + 1/1 - 10 + 1 = 11

Therefore, the solution to the expression 2 3/4 : (1 1/2 - 2/5) + (3/4 + 5/6) : 3 1/6 is 11.

Let me know if you have any further questions!