4. Вычислите: 1) |-5,7| + |-2,5| - |4,32|; 2) |$$\frac{5}{42}$$| : |$$-1\frac{2}{3}$$|.

1) |-5,7| + |-2,5| - |4,32| = 5,7 + 2,5 - 4,32 = 8,2 - 4,32 = 3,88 2) |$$\frac{5}{42}$$| : |$$-1\frac{2}{3}$$| = $$\frac{5}{42}$$ : $$\frac{5}{3}$$ = $$\frac{5}{42}$$ * $$\frac{3}{5}$$ = $$\frac{1}{14}$$ * $$\frac{1}{1}$$ = $$\frac{1}{14}$$