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Sevchik2
@Sevchik2
July 2022
1
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ПОМОГИТЕ ПОЖАЛУЙСТА
20(7/10-3 1/4)
-21(2/21+8/21)
(2 5/21-22):2/105
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TigerYa
Verified answer
1)20(7/10-3ц1/4)=20(7/10-13/4)=20(14/20-65/20)=20(-51/20)=20/1*(-51/20)=-51; ____ 2)-21(2/21+8/21)=-21(10/21)=-21/1*10/21=-10; _____________3)(2ц5/21-22):2/105=(47/21-22/1):2/105=47/21-22*21/21):2/105=(47-462)/21):2/105=(-415/21)*105/2=-415*5/2=-830/2=-415.
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Sevchik2
пойми что вы тут написали
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Answers & Comments
Verified answer
1)20(7/10-3ц1/4)=20(7/10-13/4)=20(14/20-65/20)=20(-51/20)=20/1*(-51/20)=-51; ____ 2)-21(2/21+8/21)=-21(10/21)=-21/1*10/21=-10; _____________3)(2ц5/21-22):2/105=(47/21-22/1):2/105=47/21-22*21/21):2/105=(47-462)/21):2/105=(-415/21)*105/2=-415*5/2=-830/2=-415.