Question

Вычислите:2/17+7/17,7/16-5/16,2/251+9\25,12/13-3/131-2/5,1-3/4,1-4/7,1-10/11\-(эта дробная черта)

Answer 1

Выражение: 12/13-3/131-2/5
Ответ: 4259/8515
Выражение: 2/17+7/17
Ответ: 9/17
Выражение: 7/16-5/16
Ответ: 1/8
Выражение: 2/251+9/25
Ответ: 2309/6275
Выражение: 1-3/4
Ответ: 1/4
Выражение: 1-4/7
Ответ: 3/7
Выражение: 1-10/11
Ответ: 1/11
Просто приводите к общему знаменателю и всё.

Answer 2

Calculation 1: 2/17 + 7/17

To calculate the sum of 2/17 and 7/17, we add the numerators and keep the denominator the same.

2/17 + 7/17 = (2 + 7)/17 = 9/17

Therefore, 2/17 + 7/17 = 9/17.

Calculation 2: 7/16 - 5/16

To calculate the difference between 7/16 and 5/16, we subtract the numerators and keep the denominator the same.

7/16 - 5/16 = (7 - 5)/16 = 2/16

To simplify the result, we can divide both the numerator and denominator by their greatest common divisor, which is 2.

2/16 ÷ 2/16 = 1/8

Therefore, 7/16 - 5/16 = 1/8.

Calculation 3: 2/251 + 9/25

To calculate the sum of 2/251 and 9/25, we need to find a common denominator.

The least common multiple (LCM) of 251 and 25 is 6275.

2/251 can be converted to an equivalent fraction with a denominator of 6275