Câu hỏi
(3 x)/(5 x+5 y)-(x)/(10 x-10 y)
Giải pháp
4.2
(232 Phiếu)
Quỳnh Hương
thầy · Hướng dẫn 5 năm
Trả lời
To solve the expression
, we need to find a common denominator and combine the fractions.First, let's simplify the denominators:
So, the expression becomes:
Next, we need to find a common denominator. The least common multiple (LCM) of \(5(x + y)\) and \(10(x - y)\) is \(10(x + y)(x - y)\).Rewrite each fraction with the common denominator:
Now, add the fractions:
Combine the numerators:
Distribute and simplify the numerator:
So, the expression simplifies to:
Therefore, the simplified form of the given expression is: