$$\frac{9}{7}\div7\frac{3}{8}\times(-\frac{7}{5}+\frac{7}{8})$$
$-\frac{27}{295}\approx -0.091525424$
$$\frac{9\times 8}{7\left(7\times 8+3\right)}\left(-\frac{7}{5}+\frac{7}{8}\right)$$
$$\frac{72}{7\left(7\times 8+3\right)}\left(-\frac{7}{5}+\frac{7}{8}\right)$$
$$\frac{72}{7\left(56+3\right)}\left(-\frac{7}{5}+\frac{7}{8}\right)$$
$$\frac{72}{7\times 59}\left(-\frac{7}{5}+\frac{7}{8}\right)$$
$$\frac{72}{413}\left(-\frac{7}{5}+\frac{7}{8}\right)$$
$$\frac{72}{413}\left(-\frac{56}{40}+\frac{35}{40}\right)$$
$$\frac{72}{413}\times \frac{-56+35}{40}$$
$$\frac{72}{413}\left(-\frac{21}{40}\right)$$
$$\frac{72\left(-21\right)}{413\times 40}$$
$$\frac{-1512}{16520}$$
$$-\frac{27}{295}$$
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$-\frac{27}{295} = -0.09152542372881356$
