Question

1. Привести дробь к общему знаменателю:17/9+ 2/5​

Answer 1

Вот ответ …………………………………………

Answer 2

1. Привести дробь к общему знаменателю: 17/9 + 2/5

To add fractions with different denominators, we need to find a common denominator. The common denominator is the least common multiple (LCM) of the denominators.

Let's find the LCM of 9 and 5:

- The multiples of 9 are: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ... - The multiples of 5 are: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ...

The least common multiple of 9 and 5 is 45.

Now, let's convert the fractions to have a common denominator of 45:

- For 17/9, we multiply the numerator and denominator by 5: (17 * 5) / (9 * 5) = 85/45. - For 2/5, we multiply the numerator and denominator by 9: (2 * 9) / (5 * 9) = 18/45.

Now that both fractions have the same denominator, we can add them:

85/45 + 18/45 = (85 + 18) / 45 = 103/45.

Therefore, the sum of 17/9 and 2/5, when brought to a common denominator, is 103/45.