Question

21-1 3/8÷(3/8+1 1/2)×3 2/11

Answer 1

Пошаговое объяснение:

21-1 3/8÷(3/8+1 1/2)×3 2/11

21-1 3/8÷1 7/8×3 2/11

21-11/15×3 2/11

21-2 1/3

18 2/3 ≈ 18,66...

Answer 2

To solve the expression, follow the order of operations (PEMDAS/BODMAS: Parentheses/Brackets, Exponents/Orders, Multiplication and Division, Addition and Subtraction):

1. First, perform the addition inside the parentheses: 3/8 + 1 1/2 = 3/8 + 3/2 = 3/8 + 12/8 = 15/8

2. Next, simplify the expression inside the parentheses: 3 2/11 = (3 * 11 + 2) / 11 = 35/11

3. Now, divide the result from step 1 by the result from step 2: (15/8) / (35/11) = (15/8) * (11/35) = 165/280 = 33/56

4. Finally, multiply the result from step 3 by 21 - 1: 21 - 1 = 20 (33/56) * 20 = (33/56) * (20/1) = 660/56 = 165/14 = 11 11/14

So, the value of the expression is 11 11/14.