\[\frac{1}{2\frac{1}{3}}\]

1
Convert 2132\frac{1}{3} to improper fraction. Use this rule: abc=ac+bca \frac{b}{c}=\frac{ac+b}{c}.
12×3+13\frac{1}{\frac{2\times 3+1}{3}}

2
Simplify  2×32\times 3  to  66.
16+13\frac{1}{\frac{6+1}{3}}

3
Simplify  6+16+1  to  77.
173\frac{1}{\frac{7}{3}}

4
Invert and multiply.
37\frac{3}{7}

Done

Decimal Form: 0.428571

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