Question

Найдите разность. 1) -8/15-(-7/15)2) -2/9-(-4/9) 3) 7/13-(-5/26)4) 0-(-1 2/3)5)-8/17-(-9/17)6) -(-7/9)-1 5/9​

Answer 1

Ответ:

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Answer 2

Давайте рассчитаем каждую из разностей:

1. -8/15 - (-7/15) = -8/15 + 7/15 = (-8 + 7)/15 = -1/15

2. -2/9 - (-4/9) = -2/9 + 4/9 = (-2 + 4)/9 = 2/9

3. 7/13 - (-5/26) = 7/13 + 5/26 = (14/26 + 5/26) / 13 = 19/26 / 13 = 19/338

4. 0 - (-1 2/3) = 0 + 1 2/3 = 1 2/3

5. -8/17 - (-9/17) = -8/17 + 9/17 = (-8 + 9)/17 = 1/17

6. -(-7/9) - 1 5/9 = 7/9 - 1 5/9 = (7/9 - 9/9) - 5/9 = -2/9 - 5/9 = (-2 - 5)/9 = -7/9

Таким образом, разности равны:

1. -1/15
2. 2/9
3. 19/338
4. 1 2/3
5. 1/17
6. -7/9