Найди значение выражения в заданиях 5 и 6

Задание 5. 1) $\frac{0.9}{1 + \frac{1}{5}} = \frac{0.9}{\frac{6}{5}} = 0.9 \cdot \frac{5}{6} = \frac{3}{2} \cdot \frac{5}{6} = \frac{15}{12} = \frac{5}{4} = 1.25$ 2) $$\frac{2.6}{1 - \frac{1}{14}} = \frac{2.6}{\frac{13}{14}} = 2.6 \cdot \frac{14}{13} = 0.2 \cdot 14 = 2.8$$ 3) $$\frac{1.3}{1 + \frac{1}{12}} = \frac{1.3}{\frac{13}{12}} = 1.3 \cdot \frac{12}{13} = 0.1 \cdot 12 = 1.2$$ 4) $$\frac{1.2}{1 - \frac{1}{3}} = \frac{1.2}{\frac{2}{3}} = 1.2 \cdot \frac{3}{2} = 0.6 \cdot 3 = 1.8$$ 5) $$\frac{0.6}{1 + \frac{1}{2}} = \frac{0.6}{\frac{3}{2}} = 0.6 \cdot \frac{2}{3} = 0.2 \cdot 2 = 0.4$$ 6) $$\frac{0.8}{1 - \frac{1}{9}} = \frac{0.8}{\frac{8}{9}} = 0.8 \cdot \frac{9}{8} = 0.1 \cdot 9 = 0.9$$ Задание 6. 1) $-7 - (-4.7) - 6.8 = -7 + 4.7 - 6.8 = -2.3 - 6.8 = -9.1$ 2) $-13 - (-9.3) - 7.8 = -13 + 9.3 - 7.8 = -3.7 - 7.8 = -11.5$ 3) $-12 - (-8.6) - 9.4 = -12 + 8.6 - 9.4 = -3.4 - 9.4 = -12.8$ 4) $7.6 - 8 - (-5.2) = 7.6 - 8 + 5.2 = -0.4 + 5.2 = 4.8$ 5) $6.8 - 11 - (-6.1) = 6.8 - 11 + 6.1 = -4.2 + 6.1 = 1.9$ 6) $5.3 - 9 - (-4.4) = 5.3 - 9 + 4.4 = -3.7 + 4.4 = 0.7$ 7) $-0.8 - (-10)^2 - 95 = -0.8 - 100 - 95 = -100.8 - 95 = -195.8$ 8) $0.7 - (-10)^3 - 20 = 0.7 - (-1000) - 20 = 0.7 + 1000 - 20 = 1000.7 - 20 = 980.7$ 9) $-0.2 - (-10)^2 + 55 = -0.2 - 100 + 55 = -100.2 + 55 = -45.2$ 10) $0.9 - (-10)^3 + 50 = 0.9 - (-1000) + 50 = 0.9 + 1000 + 50 = 1050.9$ 11) $-0.7 - (-10)^2 - 120 = -0.7 - 100 - 120 = -100.7 - 120 = -220.7$ 12) $0.6 - (-10)^3 + 50 = 0.6 - (-1000) + 50 = 0.6 + 1000 + 50 = 1050.6$ 13) $30 - 0.8 - (-10)^2 = 30 - 0.8 - 100 = 29.2 - 100 = -70.8$ 14) $80 + 0.4 - (-10)^3 = 80 + 0.4 - (-1000) = 80 + 0.4 + 1000 = 1080.4$ 15) $55 + 0.2 - (-10)^2 = 55 + 0.2 - 100 = 55.2 - 100 = -44.8$ 16) $-60 + 0.4 - (-10)^2 = -60 + 0.4 - 100 = -59.6 - 100 = -159.6$ 17) $-80 + 0.3 - (-10)^3 = -80 + 0.3 - (-1000) = -80 + 0.3 + 1000 = -79.7 + 1000 = 920.3