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alinka071004
@alinka071004
August 2021
1
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Помогите пожалуйста !!!!!!!!!!!!!!!!!
-2 целых 5/8 : 1 целую 3/4+(-8,7-(-2,3)) : 0,8-2 целых 2/9 * (-0,6)
Получается -8 целых 1/2.Решите пожалуйста по действиям
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prettypushkova
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- 2 5/8 : 1 3/4 + (-8,7 - (-2,3)) : 0,8 - 2 2/9 * (-0,6) = - 8 1/6
1) -8,7 - (-2,3) = -8,7 + 2,3 = - 6,4
2) -6,4 : 0,8 = - 8
3) -2 5/8 : 1 3/4 = -21/8 : 7/4 = -21/8 * 4/7 = -(3*1)/(2*1) = -3/2 = - 1 1/2
4) 2 2/9 * (-0,6) = 20/9 * (-6/10) = -(2*2)/(3*1) = -4/3 = - 1 1/3
5) -1 1/2 + (-8) = - 9 1/2
6) -9 1/2 - (-1 1/3) = -9 1/2 + 1 1/3 = - 9 3/6 + 1 2/6 = - 8 1/6
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Answers & Comments
Verified answer
- 2 5/8 : 1 3/4 + (-8,7 - (-2,3)) : 0,8 - 2 2/9 * (-0,6) = - 8 1/61) -8,7 - (-2,3) = -8,7 + 2,3 = - 6,4
2) -6,4 : 0,8 = - 8
3) -2 5/8 : 1 3/4 = -21/8 : 7/4 = -21/8 * 4/7 = -(3*1)/(2*1) = -3/2 = - 1 1/2
4) 2 2/9 * (-0,6) = 20/9 * (-6/10) = -(2*2)/(3*1) = -4/3 = - 1 1/3
5) -1 1/2 + (-8) = - 9 1/2
6) -9 1/2 - (-1 1/3) = -9 1/2 + 1 1/3 = - 9 3/6 + 1 2/6 = - 8 1/6