\[\frac{9}{45\div 2}\]
1
Simplify  945\frac{9}{45}  to  15\frac{1}{5}.
15÷2\frac{1}{5}\div 2

2
Use this rule: a÷bc=a×cba\div \frac{b}{c}=a\times \frac{c}{b}.
15×12\frac{1}{5}\times \frac{1}{2}

3
Use this rule: ab×cd=acbd\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}.
1×15×2\frac{1\times 1}{5\times 2}

4
Simplify  1×11\times 1  to  11.
15×2\frac{1}{5\times 2}

5
Simplify  5×25\times 2  to  1010.
110\frac{1}{10}

Done

Decimal Form: 0.1
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