Weber Delgado
01/31/2023 · Primary School
28. Сократите дробь: \( \begin{array}{ll}\text { a) } \frac{a(b-2)}{5(b-2)} ; & \text { б) } \frac{3(x+4)}{c(x+4)}\end{array} \)
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Чтобы сократить дроби, нужно найти общие множители в числителе и знаменателе и сократить их.
a) Для дроби \( \frac{a(b-2)}{5(b-2)} \):
- Общий множитель: \( (b-2) \).
- Сокращаем дробь:
\[
\frac{a(b-2)}{5(b-2)} = \frac{a}{5}, \quad (b-2 \neq 0)
\]
б) Для дроби \( \frac{3(x+4)}{c(x+4)} \):
- Общий множитель: \( (x+4) \).
- Сокращаем дробь:
\[
\frac{3(x+4)}{c(x+4)} = \frac{3}{c}, \quad (x+4 \neq 0)
\]
Таким образом, сокращенные дроби:
- a) \( \frac{a}{5} \)
- б) \( \frac{3}{c} \)
Quick Answer
a) \( \frac{a}{5} \)
б) \( \frac{3}{c} \)
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