Question

-2/9+5/9 -4/7+2/7 5/8+(-7/12)

Answer 1

Ответ:

1)=3;2)=-2;3)=-1.32;

Answer 2

Ответ:

незнаю

Пошаговое объяснение:

Answer 3

To solve these arithmetic expressions, you'll need to perform the operations as follows:

1. Adding fractions with common denominators: -2/9 + 5/9 = ( -2 + 5 ) / 9 = 3 / 9 = 1 / 3

2. Subtracting fractions with common denominators: -4/7 + 2/7 = ( -4 + 2 ) / 7 = -2 / 7

3. Adding fractions with different denominators: To add fractions with different denominators, you first need to find a common denominator. The common denominator for 8 and 12 is 24. 5/8 + (-7/12) = (5 * 3) / (8 * 3) + (-7 * 2) / (12 * 2) = 15 / 24 + (-14) / 24 = (15 - 14) / 24 = 1 / 24

So, the simplified results of the expressions are:

1. -2/9 + 5/9 = 1/3
2. -4/7 + 2/7 = -2/7
3. 5/8 + (-7/12) = 1/24