Question

How do you convert $3$ and $\dfrac{1}{2}$ feet to inches?

Answer 1

Hint: In order to solve this sum, we recall the standard conversion factor from feet to inches. We get to know that $1$ ft. = $12$ inches. Now, in order to convert the given number, we change the fraction into decimal and then multiply it with the conversion factor for inches and get our required answer.

Complete step-by-step solution:
In the question, we are asked to convert feet into inches. Both of the given units are used for measuring miscellaneous things. Now, we know that –
$1$ ft. = $12$ inches
Now, we are asked to convert $3$and $\dfrac{1}{2}$ feet to inches
We can also write $3\dfrac{1}{2}$ ft. as $3.5$ ft. in decimal form so that it is easier for us to calculate.
Now, $1$ ft. = $12$ inches

Therefore, $3.5$ ft. =$12 \times 3.5$ inches $ = 42$ inches

Note: These types of questions are called story sums. In order to solve these sums accurately, one must thoroughly read and understand what the question requires. We form our equation accordingly once we have found what we need to place as our unknown constant and relate it with the other variables in the question. We usually place the known variables on the left hand side and place the unknown variables on the right hand side so it is easier for us to calculate and solve the required sum.
Feet and inches are used as units of measurement. Feet is the plural form, while foot is the singular form. It is a unit of measurement in British Imperial and United States Customary systems of measurement.
$1$ ft.=$12$ inches
$1$ ft = $1$ yard
$1$ ft = $30.48$ cm