\( \frac{9}{10} \) of \( 90 \%= \)

To find \( \frac{9}{10} \) of \( 90\% \), we first convert \( 90\% \) into a decimal, which is \( 0.9 \). Then we multiply: \[ \frac{9}{10} \times 0.9 = 0.9 \times 0.9 = 0.81 \] Then, converting \( 0.81 \) back to a percentage gives us \( 81\% \). So, \( \frac{9}{10} \) of \( 90\% \) is \( 81\% \). Did you know that percentages are just ratios expressed out of 100? This means they can be easily converted to decimals or fractions for various calculations. Understanding this can help you tackle a wide range of math problems with ease! When dealing with fractions and percentages, precision is key! A common mistake is to miscalculate the conversion between percentages and decimals or to forget to multiply the fraction properly. Always double-check your steps: converting to decimal first often simplifies the math!