Question

115,2÷(3 11/18+5 7/18)+7,8×1,5=

Answer 1

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Пошаговое объяснение:

Answer 2

To solve the expression, you should follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right). In this expression, there are division, addition, and multiplication operations. Let's break it down step by step:

1. First, let's simplify the fractions within the parentheses:
   • 3 11/18 = 18/18 + 11/18 = 29/18
   • 5 7/18 = 18/18 + 7/18 = 25/18

So, the expression becomes: 115.2 ÷ (29/18 + 25/18) + 7.8 × 1.5

2. Now, add the fractions within the parentheses:

   • (29/18 + 25/18) = 54/18

3. Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 18:

   • 54/18 = (54 ÷ 18) / (18 ÷ 18) = 3/1

So, the expression becomes: 115.2 ÷ (3/1) + 7.8 × 1.5

4. Now, perform the division and multiplication:

   • 115.2 ÷ (3/1) = 115.2 × 1/3 = 38.4
   • 7.8 × 1.5 = 11.7

5. Finally, add the results:

   • 38.4 + 11.7 = 50.1

So, the answer to the expression is 50.1.