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Evaluate:

[tex]\[
\frac{3 \frac{1}{4} \times 1 \frac{3}{5}}{11 \frac{1}{5} - 5 \frac{1}{3}}
\][/tex]

A. \(\frac{14}{44}\)

B. \(\frac{30}{44}\)

C. \(\frac{4}{5}\)

D. [tex]\(\frac{11}{15}\)[/tex]


Sagot :

To evaluate the expression \(\frac{3 \frac{1}{4} \times 1 \frac{3}{5}}{11 \frac{1}{5}-5 \frac{1}{3}}\), we will convert mixed numbers to improper fractions and perform the operations step-by-step.

1. Convert mixed numbers to improper fractions:

- \(3 \frac{1}{4} = 3 + \frac{1}{4} = 3 + 0.25 = 3.25\)
- \(1 \frac{3}{5} = 1 + \frac{3}{5} = 1 + 0.6 = 1.6\)
- \(11 \frac{1}{5} = 11 + \frac{1}{5} = 11 + 0.2 = 11.2\)
- \(5 \frac{1}{3} = 5 + \frac{1}{3} = 5 + 0.3333 \approx 5.3333\)

2. Calculate the numerator:

- The numerator of the expression is \(3 \frac{1}{4} \times 1 \frac{3}{5} = 3.25 \times 1.6\).
- \(3.25 \times 1.6 = 5.2\)

3. Calculate the denominator:

- The denominator of the expression is \(11 \frac{1}{5} - 5 \frac{1}{3} = 11.2 - 5.3333\).
- \(11.2 - 5.3333 = 5.8667\)

4. Compute the fraction:

- The fraction is \(\frac{3 \frac{1}{4} \times 1 \frac{3}{5}}{11 \frac{1}{5}-5 \frac{1}{3}} = \frac{5.2}{5.8667}\).
- Performing the division gives us \( \frac{5.2}{5.8667} \approx 0.8864 \approx \frac{4}{5} \).

Thus, the evaluated result is \(\frac{4}{5}\), which corresponds to:

C. [tex]\(\frac{4}{5}\)[/tex]