Find the fractions:
23 mm of 12cm

Answer

To solve the problem of finding the fraction of 23 mm of 12 cm, we can follow these steps:

### Step 1: Convert 12 cm to mm
First, we need to convert the measurement from centimeters to millimeters. We know that:
1 cm = 10 mm

So, to convert 12 cm to mm:
\[ 12 \text{ cm} = 12 \times 10 \text{ mm} = 120 \text{ mm} \]

### Step 2: Write the fraction
Now that we have both measurements in the same unit (millimeters), we can write the fraction. We want to find the fraction of 23 mm out of 120 mm:
\[ \text{Fraction} = \frac{23 \text{ mm}}{120 \text{ mm}} \]

### Step 3: Simplify the fraction
Next, we need to simplify the fraction if possible. The fraction \(\frac{23}{120}\) cannot be simplified further because 23 is a prime number and does not divide 120 evenly.

### Final Answer
Thus, the fraction of 23 mm of 12 cm is:
\[ \frac{23}{120} \]

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