Question

Тренажер 4.1. Действия над рациональными числами (-18/15)-(-26/14)+(-1/2)+(-1/2)

Answer 1

Ответ:

-12/35

Пошаговое объяснение:

-18/15+26/14-1/2-1/2=-12/35

Answer 2

Operations with Rational Numbers

To solve the expression (-18/15) - (-26/14) + (-1/2) + (-1/2), we can follow these steps:

1. Simplify the fractions: - (-18/15) simplifies to -6/5 - (-26/14) simplifies to -13/7

2. Perform the subtraction and addition: - (-6/5) - (-13/7) + (-1/2) + (-1/2)

3. Find a common denominator: The common denominator for 5, 7, and 2 is 70.

4. Convert all fractions to have a denominator of 70: - (-6/5) becomes (-84/70) - (-13/7) becomes (-130/70) - (-1/2) becomes (-35/70) - (-1/2) becomes (-35/70)

5. Perform the operations: - (-84/70) - (-130/70) + (-35/70) + (-35/70) - = (-84/70) + (130/70) + (-35/70) + (-35/70) - = (-84 + 130 - 35 - 35)/70 - = (-24)/70 - = -12/35

Therefore, the result of the expression (-18/15) - (-26/14) + (-1/2) + (-1/2) is -12/35. [[1]]