Question

1 5/8:1,3:0,39 пж помогите спс заранее50баллов даю​

Answer 1

Ответ:

Пошаговое объяснение:

13/8÷13/10=13/8×10/3=130/24=5 10/24=5 5/12

65/12÷39/100=65/12×100/39=1625/117=13 104/117=13,888

Answer 2

To solve the expression 1 5/8 : 1 3/0.39, we need to follow the order of operations, which is commonly known as PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction).

Step 1: Convert mixed numbers to improper fractions

The mixed numbers 1 5/8 and 1 3/0.39 need to be converted to improper fractions before we can proceed with the division.

1 5/8 can be converted to an improper fraction as follows: 1 * 8 + 5 = 13 13/8

1 3/0.39 can be converted to an improper fraction as follows: 1 * 0.39 + 3 = 3.39 3.39/0.39

Step 2: Perform the division

Now that we have both fractions in improper form, we can proceed with the division.

(13/8) : (3.39/0.39)

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction.

(13/8) * (0.39/3.39)

Step 3: Simplify the fraction

To simplify the fraction, we multiply the numerators and denominators.

(13 * 0.39) / (8 * 3.39)

Step 4: Calculate the result

Now we can calculate the result by performing the multiplication and division.

(5.07) / (27.12)

The result is approximately 0.187.

Therefore, the expression 1 5/8 : 1 3/0.39 is approximately equal to 0.187.

Please note that the above calculation is based on the given expression. If there is any mistake in the expression or if you have any further questions, please let me know.