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Question

The simplified value of

\[ \left(\frac{\frac{17}{21}}{\frac{17}{3}}\right) \div \left(\frac{2}{6}\times\frac{12}{6}+\frac{2}{7}\right) +\frac{3}{7}\div\frac{20}{12}\text{ of }\frac{12}{7} \] is:

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RRB Paramedical 2025 Nursing Superintendent Question Paper PDF (12-Mar-2026) (Shift 3)
The correct answer is

\(\frac{3}{10}\)

Given:

\[ \left(\frac{\frac{17}{21}}{\frac{17}{3}}\right) \div \left(\frac{2}{6}\times\frac{12}{6}+\frac{2}{7}\right) +\frac{3}{7}\div\left(\frac{20}{12}\text{ of }\frac{12}{7}\right) \]

Step 1: Simplify the first fraction

\[ \frac{\frac{17}{21}}{\frac{17}{3}} =\frac{17}{21}\times\frac{3}{17} =\frac{1}{7} \]

Step 2: Simplify the bracket

\[ \frac{2}{6}\times\frac{12}{6}+\frac{2}{7} =\frac{1}{3}\times2+\frac{2}{7} \]

\[ =\frac{2}{3}+\frac{2}{7} =\frac{14+6}{21} =\frac{20}{21} \]

Therefore,

\[ \frac{1}{7}\div\frac{20}{21} =\frac{1}{7}\times\frac{21}{20} =\frac{3}{20} \]

Step 3: Simplify the second part

\[ \frac{20}{12}\text{ of }\frac{12}{7} =\frac{20}{12}\times\frac{12}{7} =\frac{20}{7} \]

Thus,

\[ \frac{3}{7}\div\frac{20}{7} =\frac{3}{7}\times\frac{7}{20} =\frac{3}{20} \]

Step 4: Add both parts

\[ \frac{3}{20}+\frac{3}{20} =\frac{6}{20} =\frac{3}{10} \]

Hence, \(\boxed{\frac{3}{10}}\) 

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Important Questions from Fractions

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  3. The value of $\frac{5}{2} + \frac{1}{(1 + \frac{3}{8})} - \frac{3}{5}$ is
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