Ответ:
Пошаговое объяснение:
1) 6 1/8*2 2/7=49/8*16/7=14
14-12 11/19=1 8/19
1 8/19:27=27/19*1/27=1/19
1/19+18/19=1
2) 3 3/4:4 2/7=15/4*7/30=7/8
7/8-(-1/2)^3=7/8+1/8=1
1:4/5=1*5/4=5/4=1 1/4
1 1/4-2 1/4=-1
3) 5/9-5 1/2=10/18-5 9/18=-4 17/18
-4 17/18:8 1/11=-89/18*11/89=-11/18
-11/18*3 3/5=-11/18*18/5=-11/5=-2 1/5
4) (10 1/2-11)^2 =(-1/2)^2 =1/4
20-21 1/3=-1 1/3
1/4*(-1 1/3)=1/4*(-4/3)=-1/3
-1/3-5 2/3=-6
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Answers & Comments
Ответ:
Пошаговое объяснение:
1) 6 1/8*2 2/7=49/8*16/7=14
14-12 11/19=1 8/19
1 8/19:27=27/19*1/27=1/19
1/19+18/19=1
2) 3 3/4:4 2/7=15/4*7/30=7/8
7/8-(-1/2)^3=7/8+1/8=1
1:4/5=1*5/4=5/4=1 1/4
1 1/4-2 1/4=-1
3) 5/9-5 1/2=10/18-5 9/18=-4 17/18
-4 17/18:8 1/11=-89/18*11/89=-11/18
-11/18*3 3/5=-11/18*18/5=-11/5=-2 1/5
4) (10 1/2-11)^2 =(-1/2)^2 =1/4
20-21 1/3=-1 1/3
1/4*(-1 1/3)=1/4*(-4/3)=-1/3
-1/3-5 2/3=-6