Question

which is the most accurate way to estimate 55% of 39?\
$\frac{7}{20} \times 40$ $\frac{1}{20} \times 40$ $\frac{9}{20} \times 40$ $\frac{11}{20} \times 40$\
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Explanation:

Step1: Convert 55% to fraction

To convert a percentage to a fraction, we write it over 100. So, \(55\%=\frac{55}{100}\). Simplify this fraction by dividing numerator and denominator by 5: \(\frac{55\div5}{100\div5}=\frac{11}{20}\).

Step2: Estimate 39 as 40

Since 39 is close to 40, we can estimate 39 as 40 for easier calculation. So, to estimate \(55\%\) of 39, we can calculate \(\frac{11}{20}\times40\) (because \(55\% = \frac{11}{20}\) and 39 is approximated to 40).

Answer:

\(\boldsymbol{\frac{11}{20} \times 40}\)