Question

What is $0.12$ divided by $1$?

Answer 1

Hint: To solve this question we need to know the concept of the unique number one,$1$ and multiplication and the Arithmetic operation on a decimal number by$1$. We need to know how the number $1$works with different numbers when being multiplied or divided. The rule used to solve the question is $\dfrac{a}{1}=a$.

Complete step-by-step answer:
The question asks us to find the value when $0.12$ is divided by $1$. It is a matter of fact that for a number $1$ which is a unique number when used in multiplication or division does not change the value with which it is used. For instance if $1$ is multiplied by any number, say $''a''$ then the result is the same as the number which is $''a''$ .
$\Rightarrow a\times 1=a$
Similarly if a number is being divided by $1$ the answer is same as the number as shown below:
$\Rightarrow \dfrac{a}{1}=a$
This shows that the existence of $1$ in multiplication or division is negligible as it does not change the value with which it is used. On applying the same concept to 0.12, so when a number 0.12 is divided by $1$
$= \dfrac{0.12}{1}$
$= 0.12$
$\therefore $ On dividing $0.12$ by $1$ we get $0.12$.

Note: When $1$is operated (multiplied/ divided) with $0$ then the calculation varies. In case of addition or subtraction $1$ has its significance, although when we talk of multiplication or division then usage of $1$ is negligible. We can re check whether the answer we got is correct or not. Consider an instance, if $\dfrac{a}{b}=c$ , then the value of $a=c\times b$ . Applying the same to re check the value. Consider $b=1$ and $c=0.12$, we are required to find the value of $a$ which is:
$a=c\times b$
$\Rightarrow a=0.12\times 1$
$\Rightarrow a=0.12$
Since any number multiplied by $1$gives the answer as the number itself as seen above.