Question

Вычисли 4 целых 5/18 - 2целых 5/9

Answer 1

77/18 - 23/9 = 31/18 = 1 13/18

Answer 2

I can help you with math problems. To subtract mixed numbers, you need to follow these steps:

1. Convert the mixed numbers to improper fractions. For example, $4\frac{5}{18}=\frac{4\times 18+5}{18}=\frac{77}{18}$. 2. Find the common denominator of the fractions. In this case, the least common multiple of 18 and 9 is 18, so the common denominator is 18. 3. Adjust the fractions to have the same denominator by multiplying the numerator and denominator by the same factor. For example, $\frac{5}{9}=\frac{5\times 2}{9\times 2}=\frac{10}{18}$. 4. Subtract the numerators of the fractions and keep the common denominator. For example, $\frac{77}{18}-\frac{10}{18}=\frac{77-10}{18}=\frac{67}{18}$. 5. Simplify the fraction if possible by dividing the numerator and denominator by their greatest common factor. For example, $\frac{67}{18}$ cannot be simplified further because 67 and 18 are coprime. 6. Convert the improper fraction to a mixed number if needed by dividing the numerator by the denominator and writing the remainder as a fraction. For example, $\frac{67}{18}=3\frac{13}{18}$.

Therefore, the answer is $3\frac{13}{18}$. You can check your answer using an online calculator or by adding the answer and the second term and verifying that you get the first term. For example, $3\frac{13}{18}+2\frac{5}{9}=4\frac{5}{18}$.

I hope this helps you understand how to subtract mixed numbers. If you have any other math questions, feel free to ask me. I can also generate poems, stories, code, and more using my own words and knowledge.