Question

(3/46-18/149)*7/18: 21/127-8/21

Answer 1

−0,38096048651 вот смотря какой класс

Answer 2

To solve the expression, we'll follow the order of operations (PEMDAS/BODMAS):

1. Parentheses/Brackets
2. Exponents/Orders
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's go step by step:

Step 1: Perform operations within parentheses: None in this case.

Step 2: Perform any exponents: None in this case.

Step 3: Perform multiplication and division from left to right: (3/46 - 18/149) * (7/18) = (-7/3346) * (7/18) = (-49/23412)

Step 4: Now, let's simplify the expression on the right side: (21/127 - 8/21) = (21/127 * 21/21 - 8/21 * 127/127) = (441/2667 - 1016/2667) = (-575/2667)

So the final expression becomes: (-49/23412) : (-575/2667)

To divide fractions, we can multiply the first fraction by the reciprocal of the second fraction: (-49/23412) : (-575/2667) = (-49/23412) * (-2667/575) = (49/23412) * (2667/575) (taking the negative sign out) = (49 * 2667) / (23412 * 575) = 130983 / 13460400

The final simplified result is: 130983 / 13460400