Question

How do you change \[ - \dfrac{9}{{10}}\] into a decimal?

Answer 1

Hint: This is the given number is in fraction form. It is having a numerator and denominator. To convert it in decimal we will perform the division as 9 divided by 10. If the denominator is 10 then it is very easy to solve. We just need to shift the decimal of the numerator to the left by the number of places equal to the zeros in the denominator.

Complete step by step solution:
Decimal is a type of number only that is obtained if a number is divided by 10 or powers of 10. When we write a number in decimal it just contains a point called decimal somewhere in between two digits of the number.
Given is the fraction,
\[ - \dfrac{9}{{10}}\]
Now the denominator is 10. That is there is only one zero in the denominator. So we will shift the decimal to one place left of the numerator. Here since there is no decimal point visible but it is present at the end of the number in the numerator. So we can write,
\[ - \dfrac{9}{{10}} = - 0.9\]
This is the final answer.
So, the correct answer is “0.9”.

Note: Here note that negative or minus sign is written before the number so it is not like decimals are not negative. It is just a number so it can be positive or negative. So don’t forget to write the minus sign.