$$(-\frac{2}{3}-(\frac{3}{5}))^{2}$$
$\frac{361}{225}\approx 1.604444444$
$$\left(-\frac{19}{15}\right)^{2}$$
$$\frac{361}{225}$$
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$\frac{19 ^ {2}}{3 ^ {2} \cdot 5 ^ {2}} = 1\frac{136}{225} = 1.6044444444444443$