Complete the following equivalent fractions:
`63/(91)=square/(13)`

Answer

To solve the problem of finding the equivalent fraction for \( \frac{63}{91} = \frac{x}{13} \), we can follow these steps:

### Step 1: Set Up the Equation
We start with the equation:
\[ \frac{63}{91} = \frac{x}{13} \]

### Step 2: Cross-Multiply
To eliminate the fractions, we can cross-multiply:
\[ 63 \times 13 = 91 \times x \]

### Step 3: Calculate \( 63 \times 13 \)
Now, we calculate \( 63 \times 13 \):
\[ 63 \times 13 = 819 \]

### Step 4: Write the Equation
Now we have:
\[ 819 = 91 \times x \]

### Step 5: Solve for \( x \)
To find \( x \), we divide both sides by 91:
\[ x = \frac{819}{91} \]

### Step 6: Calculate \( \frac{819}{91} \)
Now we perform the division:
\[ x = 9 \]

### Step 7: Write the Final Answer
Thus, the equivalent fraction is:
\[ \frac{63}{91} = \frac{9}{13} \]

### Final Answer
The value of \( x \) is 9.

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