Express the given fraction as a percent. \[ \frac{9}{10} \] \[ \frac{9}{10}=\square \% \] (Round to the nearest hundredth as needed.)

Step 1 ：Given the fraction \(\frac{9}{10}\), we are asked to express this as a percentage.

Step 2 ：To convert a fraction to a percentage, we divide the numerator by the denominator and then multiply the result by 100.

Step 3 ：First, divide the numerator 9 by the denominator 10 to get a decimal. This gives us 0.9.

Step 4 ：Next, multiply the decimal 0.9 by 100 to get the percentage. This gives us 90.0.

Step 5 ：So, \(\frac{9}{10}\) expressed as a percentage is \(\boxed{90.0\%}\).