1) 20+19+9=48
2)47063-184=46879
3)5383*96=516768
4)516768/48=10766
5)46879*7=328153
6)10766+10399=21165
7)21165+328153=349318
1/2 = 3/6
1/3 = 2/6
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1/2 = 5/10
1/5 = 2/10
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1/2 = 7/14
1/7 = 2/14
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1/2 = 9/18
1/9 = 2/18
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1/2 = 3/6
2/3 = 4/6
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1/2 = 5/10
3/5 = 6/10
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1/2 = 7/14
6/7 = 12/14
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1/2 = 9/18
7/9 = 14/18
A^-10*a^3/a^-5=
a^-10+3-(-5)=
а^-7+5= а^-2= 1/а²
1/4²=1/16
Ответ:
1) 9 4/8
2) 8 11/15
Пошаговое объяснение:
17 1/8 - 17 1/8 = 9 4/8
20 4/15 - 11 8/15 = 8 11/15
42/(-15,6) +1 = -2,69 +1 = -1,69 = - 1,7