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
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
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- 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