$$\dfrac{-(-91)^{18}}{7^{18} \cdot (-13)^{16} \cdot 3}$$

$$\dfrac{4 \cdot 49^{8}}{(-7)^{7} \cdot (-7)^{7}}$$

$$\dfrac{(-14)^{2}}{(-7)^{3} \cdot 2^{3} \cdot 9}$$

$$\dfrac{-(-10)^{6}}{9 \cdot 5^{5} \cdot 2^{5}}$$

$$\dfrac{(-13)^{9} \cdot 3^{8}}{9 \cdot 39^{9}}$$

$$\dfrac{-51^{20} \cdot 5}{3^{18} \cdot 17^{19}}$$

$$\dfrac{- 7^{3} \cdot (-7)^{4} \cdot 4}{49^{2}}$$

$$\dfrac{6 \cdot (-19)^{16} \cdot (-2)^{15}}{38^{17}}$$

$$\dfrac{-4 \cdot (-91)^{17}}{(-13)^{15} \cdot (-7)^{18}}$$

$$\dfrac{26^{15} \cdot 5}{(-2)^{16} \cdot 13^{15}}$$

$$\dfrac{(-25)^{14} \cdot 3}{5^{13} \cdot 5^{12}}$$

$$\dfrac{- 2^{4} \cdot (-7)^{4} \cdot 7}{(-14)^{5}}$$

$$\dfrac{65^{14}}{(-5)^{15} \cdot (-13)^{14} \cdot 5}$$

$$\dfrac{2^{10} \cdot 13^{9}}{5 \cdot (-26)^{10}}$$

$$\dfrac{(-15)^{16}}{(-5)^{17} \cdot 3^{14} \cdot 3}$$

$$\dfrac{-(-7)^{14} \cdot (-7)^{14}}{49^{13} \cdot 2}$$

$$\dfrac{(-7)^{16} \cdot (-5)^{19}}{35^{18} \cdot 7}$$

$$\dfrac{-(-6)^{19}}{7 \cdot 3^{18} \cdot 2^{19}}$$

$$\dfrac{(-7)^{17} \cdot 2^{19}}{4 \cdot 14^{17}}$$

$$\dfrac{- (-19)^{8} \cdot 5^{9} \cdot 3}{95^{8}}$$

$$\dfrac{15^{18} \cdot 4}{(-5)^{18} \cdot 3^{18}}$$

$$\dfrac{-10 \cdot (-85)^{10}}{(-17)^{11} \cdot (-5)^{12}}$$

$$\dfrac{-15^{13}}{2 \cdot (-5)^{14} \cdot (-3)^{14}}$$

$$\dfrac{-6 \cdot (-14)^{9}}{2^{10} \cdot 7^{7}}$$

$$\dfrac{-(-3)^{7} \cdot 19^{7}}{2 \cdot 57^{8}}$$

$$\dfrac{- (-3)^{9} \cdot (-2)^{9} \cdot 6}{6^{7}}$$

$$\dfrac{35^{20}}{7^{18} \cdot 5^{20} \cdot 6}$$

$$\dfrac{-38^{19}}{10 \cdot (-2)^{19} \cdot (-19)^{18}}$$

$$\dfrac{-38^{4} \cdot 4}{2^{5} \cdot (-19)^{5}}$$

$$\dfrac{-57^{11}}{3 \cdot (-19)^{12} \cdot (-3)^{10}}$$

$$\dfrac{-2 \cdot (-7)^{12} \cdot 7^{13}}{(-49)^{12}}$$

$$\dfrac{91^{10} \cdot 4}{7^{10} \cdot (-13)^{11}}$$

$$\dfrac{95^{10}}{19^{8} \cdot (-5)^{10} \cdot 8}$$

$$\dfrac{-(-65)^{20}}{10 \cdot (-5)^{19} \cdot 13^{18}}$$

$$\dfrac{-(-65)^{20}}{(-5)^{20} \cdot 13^{18} \cdot 5}$$

$$\dfrac{-3^{15} \cdot (-17)^{16}}{10 \cdot (-51)^{14}}$$

$$\dfrac{(-33)^{20}}{(-11)^{20} \cdot 3^{20} \cdot 7}$$

$$\dfrac{-4 \cdot 2^{10} \cdot (-3)^{7}}{6^{8}}$$

$$\dfrac{-2^{2} \cdot 19^{2}}{3 \cdot 38^{3}}$$

$$\dfrac{- (-11)^{16} \cdot (-5)^{17} \cdot 10}{(-55)^{18}}$$