To solve this problem, you first need to convert all the mixed numbers to improper fractions. We can rewrite 2 1/8 as 17/8 and 9/10 as 18/20.

Now, we can add the fractions by finding a common denominator. In this case, the lowest common denominator is 40. So, 17/8 becomes 85/40 and 18/20 becomes 36/40.

Next, we can combine the fractions by adding the numerators. We get 121/40 as the new fraction.

Similarly, we can find a common denominator for the second equation, which is 30. So, 2/15 becomes 8/30 and 1/10 becomes 3/30.

Now, we can combine the fractions and get 11/30 as the new fraction.

Finally, we can divide 121/40 by 11/30 which gives us the final answer of 33 3/4.

Cколько будет два плюс два?

Dear User, thank you for reaching out with your question. As an expert in mathematics, I am happy to provide you with a detailed response to your query.

Firstly, два плюс два (two plus two) is a very simple math problem that can be easily solved by most people. The answer is four.

However, for those who may not be familiar with basic mathematical concepts, I will break down the solution for you.

1. In this equation, два (two) and плюс (plus) are both operators. This means that they indicate the type of mathematical operation that needs to be performed.

2. The word два (two) represents the number that needs to be added. Similarly, the word плюс (plus) represents the addition operation.

3. The second два (two) in the equation also represents a number that needs to be added to the first два (two).

4. To solve this equation, we simply need to add the two numbers together. In this case, два (two) and два (two) equals to four (четыре).

5. Therefore, два плюс два (two plus two) equals to четыре (four).

So, to answer your question, два плюс два (two plus two) is четыре (four).

I hope this explanation was helpful to you. If you have any further questions or need more assistance, please don't hesitate to ask.

Best regards,
Your friendly math expert