0,15⋅0,24 = 0,036
17,9:1000 = 0,0179
8 4/9:3 4/5 = 76/9 : 19/5 = 76/9 ⋅ 5/19 = (76⋅5)/(9⋅19) = (4⋅5)/9 = 20/9 = 2 2/9 = 2,(2)
4 - 5/99 = 3 99/99 - 5/99 = 3 94/99 = 3,(94)