Math Problem Statement

If 2 is added to the numerator and denominator of a fraction it becomes and if 2 is subtracted from the numerator and denominator it becomes. Find the fraction.

Solution

Let's solve this step by step.

Let the original fraction be xy\frac{x}{y}.

According to the first condition:

  • If 2 is added to both the numerator and denominator, the fraction becomes x+2y+2\frac{x+2}{y+2}.

According to the second condition:

  • If 2 is subtracted from both the numerator and the denominator, the fraction becomes x2y2\frac{x-2}{y-2}.

Now, we need more information about what the fraction "becomes" in both cases. Typically, these types of problems specify values for the new fractions (e.g., "it becomes 3/4" or "it becomes 1/2"). Could you please provide the missing values?

Once I have that, I can help you find the fraction.

Would you like details on the process or have any further questions?

Here are 5 questions to expand on this:

  1. What happens if different numbers are added to the numerator and denominator?
  2. How do we handle more complex transformations of fractions?
  3. What role does cross-multiplication play in solving these equations?
  4. How would we solve a similar problem with three transformations?
  5. How does this problem relate to rational functions in algebra?

Tip: When solving fraction problems, it's crucial to carefully set up the conditions as equations to avoid confusion later.

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Math Problem Analysis

Mathematical Concepts

Algebra
Fractions
Equation Solving

Formulas

Fraction Addition: (x + 2) / (y + 2)
Fraction Subtraction: (x - 2) / (y - 2)

Theorems

Cross-Multiplication Theorem
Basic Fraction Properties

Suitable Grade Level

Grades 8-10