Question

3) (4 1/2 3 9/10):3 3/10=help​

Answer 1

Ответ:

Сначала нужно перевести все числа в неправильные дроби, чтобы было удобнее работать:

4 1/2 = 9/2

3 = 3/1

9/10 = 0.9

Теперь можем выполнить деление:

(9/2 + 3 + 9/10) ÷ (3 3/10)

Сначала приведем знаменатель делителя к общему знаменателю:

3 3/10 = 33/10

Затем приведем все числа к дробям с общим знаменателем:

9/2 + 3 + 9/10 = (45/10 + 30/10 + 9/10) = 84/10

Теперь можно выполнить деление:

(84/10) ÷ (33/10) = (84/10) × (10/33) = 2.5454 (округляем до 4 знаков после запятой)

Ответ: 3 3/10 делится на (4 1/2 + 3 + 9/10) примерно в 2.5454 раза.

Пошаговое объяснение:

Answer 2

To solve the expression (4 1/2 3 9/10) : 3 3/10, we need to follow the order of operations, which is typically represented by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right). However, since the expression you provided is not entirely clear, I'll make some assumptions about the intended format.

Assuming you meant the expression to be:

(4 + 1/2 + 3 + 9/10) : (3 + 3/10)

Let's solve it step by step:

Step 1: Simplify the expressions within the parentheses: 4 + 1/2 + 3 + 9/10 = 8 1/2 + 3 + 9/10

Step 2: Convert all the mixed numbers to improper fractions: 8 1/2 = (2 * 8 + 1) / 2 = 17/2

Step 3: Combine the fractions: 17/2 + 3 + 9/10

Step 4: Find a common denominator for the fractions and convert them to the same denominator: 17/2 = (17 * 5) / (2 * 5) = 85/10

Step 5: Add the fractions: 85/10 + 3 + 9/10 = 85/10 + 30/10 + 9/10 = (85 + 30 + 9) / 10 = 124/10

Step 6: Simplify the resulting fraction: 124/10 = (2 * 62) / (2 * 5) = 62/5

Now, let's simplify the right side of the expression:

3 + 3/10 = (3 * 10 + 3) / 10 = 33/10

Finally, we can divide the left side of the expression by the right side:

(62/5) : (33/10) = (62/5) * (10/33) = (62 * 10) / (5 * 33) = 620/165 = 124/33

Therefore, (4 1/2 3 9/10) : 3 3/10 simplifies to 124/33.