Question

2. Which unit fraction should be used to convert 15 inches to centimeters?

a. 1 cm = 2.54in
b. 2.54cm = 2.54 in
c. 1 in =2.54cm
d. 2.54in = 1 cm

Answer 1

To convert 15 inches to centimeters, use the unit fraction 1 in = 2.54 cm. Multiply 15 by 2.54 to get 38.1 centimeters.

Step-by-step explanation:

To convert 15 inches to centimeters, it is necessary to use a unit fraction that establishes the relationship between these two units of length. The correct unit fraction to use in this conversion is option c, which is 1 in = 2.54 cm. This unit fraction indicates how many centimeters are equivalent to one inch.

To perform the conversion, you would multiply the number of inches you have by the number of centimeters that correspond to one inch:

1. Identify the given length in inches: 15 in.
2. Use the conversion factor: 1 in = 2.54 cm.
3. Multiply the length by the conversion factor: 15 in × 2.54 cm/in = 38.1 cm.

The result of the calculation is that 15 inches is equal to 38.1 centimeters.