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aaatopkhik6
@aaatopkhik6
March 2022
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ДАЮ 30 БАЛЛОВ!!! Вычислите а) 5/18 + 4/27 б)9/11 - 2/33 в) 2/3-(4/7 - 1/6) г) 5/24 + 3/18 + 5/18 + 7/24
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KOTNKN
Ответ:
Пошаговое объяснение:
а)5/18+4/27 =5 · 3/18 · 3 + 4 · 2/27 · 2=15/54+8/54=15 + 8/54=23/54
б)9/11 -2/33=9·3/11·3-2·1/33·1=27/33-2/33=27-2/33=25/33
в)4/7- 1 6 = 4·6/7·6- 1·7/6·7 =24/42-7/42=24 - 7/42=17/42
2/3 -17/42=2·14/3·14 -17·1/42·1=28/42-17/42=28 - 17//42=11/42
г)5/24 + 3/18 = 5 · 3/24 · 3 +3 · 4/18 · 4=15/72+12/72=15 + 12/72=27/72 =3 · 9/8 · 9=3/8 +5/18=3 · 9/8 · 9+5 · 4/18 · 4 =27/72+20/72=27 + 20/72 =47/72+7/24=47 · 1/72 · 1+7 · 3/24 · 3=47/72+21/72 =47 + 21 72=68/72=17 · 4/18 · 4=17/18
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Answers & Comments
Ответ:
Пошаговое объяснение:
а)5/18+4/27 =5 · 3/18 · 3 + 4 · 2/27 · 2=15/54+8/54=15 + 8/54=23/54
б)9/11 -2/33=9·3/11·3-2·1/33·1=27/33-2/33=27-2/33=25/33
в)4/7- 1 6 = 4·6/7·6- 1·7/6·7 =24/42-7/42=24 - 7/42=17/42
2/3 -17/42=2·14/3·14 -17·1/42·1=28/42-17/42=28 - 17//42=11/42
г)5/24 + 3/18 = 5 · 3/24 · 3 +3 · 4/18 · 4=15/72+12/72=15 + 12/72=27/72 =3 · 9/8 · 9=3/8 +5/18=3 · 9/8 · 9+5 · 4/18 · 4 =27/72+20/72=27 + 20/72 =47/72+7/24=47 · 1/72 · 1+7 · 3/24 · 3=47/72+21/72 =47 + 21 72=68/72=17 · 4/18 · 4=17/18