$9.45 \div 2.8\dot6\dot3$
$=\frac{945}{100} \div \frac{2863-28}{990}$
$=\frac{945}{100} \div \frac{2835}{990}$
$=\frac{189\times5}{20\times5} \div \frac{63\times45}{22\times45}$
$=\frac{189}{20} \div \frac{63}{22}$
$=\frac{189}{20} \times \frac{22}{63}$
$=\frac{3\times63}{10\times2} \times \frac{11\times2}{63}$
$=\frac{33}{10}$
$=3.3$
নির্ণেয় ভাগফল $3.3$
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