Write the decimal 2.91 as a fraction or mixed number,
Mathematics · High School · Tue Nov 03 2020
Answered on
To convert decimals into fractions, divide the decimal by 1 and multiply both top and bottom by 10 for every number after the decimal point.
In this case, 2.91 has a whole number 2 and 0.91. Set aside the whole number 2 and since 0.91 has 2 decimal places, multiply it by 100.
So it goes like this;
> 0.91/1 x 100/100
> 0.91 x 100 / 1 x 100
>91/100.
And because you have the 2 as a whole number, add 2 and 91/100.
> 2 + 91/100
> 2 91/100.
Therefore 2 91/100 is the fraction form of 2.91.
If you want to make 2 91/100 into improper fraction, 2 in fraction is 2/1 or 200/100 is still 2.
Add 200/100 and 91/100
> 200/100 +91/100
Since they have the same denominator, we can directly add the numerator.
> 200/100 +91/100
> 291/100.
Therefore, 291/100 is the improper fraction form of 2.91.