Найдите значение суммы: 1)-9,25 + ( 3целых 1/5) 2)-72 + 3целых 5/8 + (-0,75) 3)15 + ( -9,46) + (-23/50) 4)-83,4 + (- 19целых 2/3 ) + ( - 4/15) дам 17 балов решите
- 9.25 + 3 1/5 = - 9.25 + 3.2 = - | 9.25 - 3.2|= - 6.05 - 72 + 3 5/8 + ( -0.75 ) = -72 + 3.625 + (-0.75) = = - 72.750 + 3.625 = - 69.125 15 + (-9.46) + (- 23/50 ) = 15 + (-9.46) + (-0.46) = = 15 - 9.92 = 5.08 -83.4 + (- 19 2/3) + (-4/15) = - 83.4 + (- 19 10/15) + (-4/15) = = - 83 4/10 + (- 19 14/15) = - | 83 12/30 + 19 28/30|= = - 103 10/30 = - 103 1/3