Question

20,9:5,5;1 1/21:2/7;2 4/17:10/17

Answer 1

20,9:5,5= 209/55 = 3_8/10 =3,8 = 3_4/5

1 1/21:2/7 = 11/21 * 7/2 = (11*7) / (21*2) = 11/6 = 1_5/6

2 4/17:10/17 = 38/17 * 17/10 = (38*17) / (17*10) = 38/10 = 3,8

Answer 2

It appears that you have provided a sequence of numbers in a specific format. Each entry in the sequence consists of two parts separated by a colon (:). The first part before the colon represents a fraction, and the second part after the colon seems to be a combination of integers and fractions.

To interpret the sequence, let's break it down:

1. 20,9:5,5

2. 1 1/21:2/7

3. 2 4/17:10/17

4. 20,9:5,5:

   • The fraction is 20/9.
   • After the colon, it seems to be two separate numbers: 5 and 5.

5. 1 1/21:2/7:

   • The mixed number is 1 1/21, which is equivalent to (21 + 1) / 21 = 22 / 21.
   • After the colon, there is a fraction 2/7.

6. 2 4/17:10/17:

   • The mixed number is 2 4/17, which is equivalent to (2 * 17 + 4) / 17 = 38 / 17.
   • After the colon, there is a fraction 10/17.

If you have any specific question or task related to these numbers, please let me know, and I'll be happy to assist further!