Question

вычислите : 1)|5,7|+|-2,5|-|4,32|= 2)|5/42|:|-1 2/3|=

Answer 1

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