Question

ПОМОГИТЕ РЕШИТЬ! -3/7 + (-4/9)

Answer 1

Ответ:

- 55/63

Пошаговое объяснение:

-3/7 + (-4/9) = -(3/7 +4/9) = -(27/63 + 28/63) = - 55/63

Answer 2

To solve the expression -3/7 + (-4/9), we need to perform the following steps:

1. Find the common denominator for the fractions -3/7 and -4/9. The common denominator is the least common multiple (LCM) of the denominators, which in this case is 63.

2. Convert both fractions to have the common denominator of 63: - For -3/7, multiply the numerator and denominator by 9: (-3 * 9) / (7 * 9) = -27/63. - For -4/9, multiply the numerator and denominator by 7: (-4 * 7) / (9 * 7) = -28/63.

3. Add the two fractions together: -27/63 + (-28/63). - When adding fractions with the same denominator, we simply add the numerators and keep the denominator the same. - (-27 + (-28)) / 63 = -55/63.

Therefore, the solution to the expression -3/7 + (-4/9) is -55/63.

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