Question
How do you write 0.81 as a fraction?
8/9
9/10
13/18
9/11
8/9
9/10
13/18
9/11
Answers
GPT-4o mini
To convert the decimal 0.81 to a fraction, you can follow these steps:
1. Write 0.81 as a fraction:
\[
0.81 = \frac{81}{100}
\]
2. Next, simplify the fraction if possible. The greatest common divisor (GCD) of 81 and 100 is 1, so the fraction \(\frac{81}{100}\) is already in its simplest form.
Now, we need to check if \(\frac{81}{100}\) is equivalent to any of the given answer options: \( \frac{8}{9}, \frac{9}{10}, \frac{13}{18}, \frac{9}{11} \).
Calculating the decimal for each of the options:
- \( \frac{8}{9} \approx 0.888\)
- \( \frac{9}{10} = 0.9\)
- \( \frac{13}{18} \approx 0.722\)
- \( \frac{9}{11} \approx 0.818\)
None of these fractions equal 0.81. Thus, the correct answer is:
\[
0.81 = \frac{81}{100}
\]
Since none of the provided options are equal to \(\frac{81}{100}\), it appears that the options do not include the correct fraction representation of 0.81.
1. Write 0.81 as a fraction:
\[
0.81 = \frac{81}{100}
\]
2. Next, simplify the fraction if possible. The greatest common divisor (GCD) of 81 and 100 is 1, so the fraction \(\frac{81}{100}\) is already in its simplest form.
Now, we need to check if \(\frac{81}{100}\) is equivalent to any of the given answer options: \( \frac{8}{9}, \frac{9}{10}, \frac{13}{18}, \frac{9}{11} \).
Calculating the decimal for each of the options:
- \( \frac{8}{9} \approx 0.888\)
- \( \frac{9}{10} = 0.9\)
- \( \frac{13}{18} \approx 0.722\)
- \( \frac{9}{11} \approx 0.818\)
None of these fractions equal 0.81. Thus, the correct answer is:
\[
0.81 = \frac{81}{100}
\]
Since none of the provided options are equal to \(\frac{81}{100}\), it appears that the options do not include the correct fraction representation of 0.81.