To convert 15cm to inches, you will need to follow a few simple steps.

Step 1: Understand the Conversion Formula

The conversion formula for centimeters to inches is:

1 cm = 0.393701 inches

This means that for every 1cm, there are 0.393701 inches.

Step 2: Write the Known Measurement

Using the above formula, we know that 1 cm = 0.393701 inches. We are given 15cm as the known measurement that we need to convert. Therefore, we can write it as:

15 cm = ______ inches

Step 3: Set Up the Proportion

To convert 15cm to inches, we will set up a proportion where x represents the unknown number of inches.

1 cm = 0.393701 inches

15 cm = x inches

Step 4: Cross-Multiply

To solve for x, we need to cross-multiply. This means multiplying the numerators and denominators on opposite sides of the equal sign.

1x = 15 x 0.393701

Step 5: Calculate the Unknown Measurement

Using a calculator, we can solve for x by multiplying 15 and 0.393701. This gives us a result of 5.905515.

Therefore, our final step is to round the answer to the nearest hundredth, which gives us:

15 cm = 5.91 inches

So, 15cm is equivalent to 5.91 inches.

You can also double check your answer by dividing 15 by 2.54, as there are 2.54 centimeters in one inch. The result will also be 5.91 inches.

Congratulations! You have successfully converted 15cm to inches.