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пшуерлкдеротлдрике2
@пшуерлкдеротлдрике2
July 2022
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Выполните сложение:
а)-2 5\7+3=
б)- 2\9+(-5\6)=
в)2 9\11+(- 3 7\22)=
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hraky
А) -2/7
Б) -4/18-15/18=-19/18= -( 1 и 1/18)
В) 2 9/11-3 7/22=-1 7/22+18/22=-22/22+11/22=-11/22=-1/2
3 votes
Thanks 1
Nastya171167
А)- 2 5/7 + 3 = - 19/7 + 3 =(-19*1 + 3 * 7)/7 = -19/7 + 21/7 = 2/7
б) -2/9+(-5/6)=- 2/9 - 5/6 =(-2 * 2-5 * 3)/18 = -4/18 -15/18 = - 19/18 = - 1 1/18
в)2 9/11+(-3 7/22)=2 9/11 - 3 7/22 = 31/11 - 73/22 =(31 * 2 - 73 * 1)/22 = 62/22 - 73/22 = - 11/22 = - 1/2
2 votes
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Answers & Comments
Б) -4/18-15/18=-19/18= -( 1 и 1/18)
В) 2 9/11-3 7/22=-1 7/22+18/22=-22/22+11/22=-11/22=-1/2
б) -2/9+(-5/6)=- 2/9 - 5/6 =(-2 * 2-5 * 3)/18 = -4/18 -15/18 = - 19/18 = - 1 1/18
в)2 9/11+(-3 7/22)=2 9/11 - 3 7/22 = 31/11 - 73/22 =(31 * 2 - 73 * 1)/22 = 62/22 - 73/22 = - 11/22 = - 1/2