Разберем по порядку каждое действие:
д) \[ -2.3 + |3.7| = -2.3 + 3.7 = 1.4 \]
и) \[ |-4/6| - |-2/3| = |\frac{-4}{6}| - |\frac{-2}{3}| = \frac{4}{6} - \frac{2}{3} = \frac{2}{3} - \frac{2}{3} = 0 \]
e) \[ -4.7 - |-1.9| = -4.7 - 1.9 = -6.6 \]
к) \[ |-2\frac{1}{3}| \cdot |\frac{9}{14}| = |-\frac{7}{3}| \cdot |\frac{9}{14}| = \frac{7}{3} \cdot \frac{9}{14} = \frac{7 \cdot 9}{3 \cdot 14} = \frac{1 \cdot 3}{1 \cdot 2} = \frac{3}{2} = 1.5 \]
ж) \[ |28.52| : |-2.3| = 28.52 : 2.3 = 12.4 \]
л) \[ |3\frac{1}{7}| - |-1\frac{9}{14}| = |\frac{22}{7}| - |-\frac{23}{14}| = \frac{22}{7} - \frac{23}{14} = \frac{44}{14} - \frac{23}{14} = \frac{21}{14} = 1.5 \]
з) \[ |0.1| \cdot |-10| = 0.1 \cdot 10 = 1 \]
м) \[ |-8\frac{1}{3}| : |\frac{5}{6}| = |-\frac{25}{3}| : |\frac{5}{6}| = \frac{25}{3} : \frac{5}{6} = \frac{25}{3} \cdot \frac{6}{5} = \frac{25 \cdot 6}{3 \cdot 5} = \frac{5 \cdot 2}{1 \cdot 1} = 10 \]
Ответ: д) 1.4; и) 0; e) -6.6; к) 1.5; ж) 12.4; л) 1.5; з) 1; м) 10