Work out the following :
`12/15-7/15`

Answer

To solve the problem \( \frac{12}{15} - \frac{7}{15} \), we can follow these steps:

### Step 1: Identify the denominators
Both fractions have the same denominator, which is 15.

### Step 2: Subtract the numerators
Since the denominators are the same, we can directly subtract the numerators:
\[ 12 - 7 = 5 \]

### Step 3: Write the result as a fraction
Now we can write the result as a fraction with the common denominator:
\[ \frac{5}{15} \]

### Step 4: Simplify the fraction
Next, we simplify \( \frac{5}{15} \). To do this, we find the greatest common divisor (GCD) of the numerator and the denominator. The GCD of 5 and 15 is 5. We divide both the numerator and the denominator by 5:
\[ \frac{5 \div 5}{15 \div 5} = \frac{1}{3} \]

### Final Answer
Thus, the final answer is:
\[ \frac{1}{3} \]

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