$$2 \times 15+ \frac{ 50 }{ 5-(56 \times 4-7) }$$
$\frac{3155}{106}\approx 29.764150943$
$$30+\frac{50}{5-\left(56\times 4-7\right)}$$
$$30+\frac{50}{5-\left(224-7\right)}$$
$$30+\frac{50}{5-217}$$
$$30+\frac{50}{-212}$$
$$30-\frac{25}{106}$$
$$\frac{3180}{106}-\frac{25}{106}$$
$$\frac{3180-25}{106}$$
$$\frac{3155}{106}$$
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$\frac{5 \cdot 631}{2 \cdot 53} = 29\frac{81}{106} = 29.764150943396228$
