Question

25/18-47/30/-дробная черта

Answer 1

$\frac{25}{18} - \frac{47}{30} = \frac{25 \times 5}{18 \times 5} - \frac{47 \times 3}{30 \times 3} = \\ = \frac{125}{90} - \frac{141}{90} = \frac{125 - 141}{90} = \\ = \frac{ - 16}{90} = - \frac{16}{90} = - \frac{8}{45}$

Answer 2

25/18 - 47/30 = 125/90 - 141/90 = -16/90

Answer 3

To evaluate the expression, you should follow the order of operations, which is commonly remembered as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

The expression is: 25/18 - 47/30

Step 1: Perform division first. 25/18 = 1.3888888888888888 (rounded to 16 decimal places) 47/30 = 1.5666666666666667 (rounded to 16 decimal places)

Step 2: Subtract the results of the divisions. 1.3888888888888888 - 1.5666666666666667 ≈ -0.1777777777777779 (rounded to 16 decimal places)

So, the result of the expression is approximately -0.1778.