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Silaevazlata
@Silaevazlata
August 2021
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пимочка
№1.
1) 8/15 - 1 7/10 = 16/30 - 1 21/30 = - (1 21/30 - 16/30) = -5/30 = -1/6
2) -1/6 + 1/6 = 0
3) 0,5*0=0
4) -1,5+0=-1,5
№2.
1) -3 4/15 - 3/20 = - 3 16/60 - 9/60 = -3 25/60 = - 3 5/12
2) - 3 5/12 + 5/12 = -3
3) -3*0,6=-1,8
4) -1,8-0,6=-2,4
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iriska124
Пример 1
1)8\15-1 7\10 =8\15-17\10 =8*10-17*15\150=-175\150
2)-175\150 +1\6=-175+25\150=-150\150=-1
3)0,5*(-1)=-0,5
4)-1,5+(-0,5)=-2
Ответ ----- (-2)
Пример 2
1)-3 4\15 + 3\20 =-49\15+3\20=-49*20+3*15\300=-935\300
2)-935\300+5\12=-935+5*25\300=-810\300=-2,7
3)-2,7*0,6=-1,62
4)-1,62-0,6=-2,22
Ответ ------ (-2,22)
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Answers & Comments
1) 8/15 - 1 7/10 = 16/30 - 1 21/30 = - (1 21/30 - 16/30) = -5/30 = -1/6
2) -1/6 + 1/6 = 0
3) 0,5*0=0
4) -1,5+0=-1,5
№2.
1) -3 4/15 - 3/20 = - 3 16/60 - 9/60 = -3 25/60 = - 3 5/12
2) - 3 5/12 + 5/12 = -3
3) -3*0,6=-1,8
4) -1,8-0,6=-2,4
1)8\15-1 7\10 =8\15-17\10 =8*10-17*15\150=-175\150
2)-175\150 +1\6=-175+25\150=-150\150=-1
3)0,5*(-1)=-0,5
4)-1,5+(-0,5)=-2
Ответ ----- (-2)
Пример 2
1)-3 4\15 + 3\20 =-49\15+3\20=-49*20+3*15\300=-935\300
2)-935\300+5\12=-935+5*25\300=-810\300=-2,7
3)-2,7*0,6=-1,62
4)-1,62-0,6=-2,22
Ответ ------ (-2,22)