Convertis Yéchelle verbale en échelle fractionnaire : 1 cm=15 kmunderline ( ) 1 cm=0.5 km underline ( ) 1 cm=1 km underline ( ) 1 cm=500 kmunderline ( )

## Step 1: Converting cm to km### We need to convert the given verbal scales (1 cm = x km) into fractional scales (1/x). Remember that 1 km = 100,000 cm.## Step 2: Calculating the fractional scale for 1 cm = 15 km### Since 1 km = 100,000 cm, then 15 km = 15 * 100,000 cm = 1,500,000 cm. Therefore, the fractional scale is .## Step 3: Calculating the fractional scale for 1 cm = 0.5 km### 0.5 km = 0.5 * 100,000 cm = 50,000 cm. The fractional scale is .## Step 4: Calculating the fractional scale for 1 cm = 1 km### 1 km = 100,000 cm. The fractional scale is .## Step 5: Calculating the fractional scale for 1 cm = 500 km### 500 km = 500 * 100,000 cm = 50,000,000 cm. The fractional scale is .