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Katyyyo
@Katyyyo
August 2021
1
8
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Плиз решите очень сильно надо,если можно побыстрей просто я не видела мамку 2 месяца и сейчас через 20 мин она приедет за мной пожалуйста!!!!!!
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prettypushkova
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А) 2 13/30 - (1 1/10 + 1/5) = 1 2/15
1) 1 1/10 + 1/5 = 1 1/10 + 2/10 = 1 3/10
2) 2 13/30 - 1 3/10 = 2 13/30 - 1 9/30 = 1 4/30 = 1 2/15
б) 2 8/15 - (1 3/10 + 2/5) = 5/6
1) 1 3/10 + 2/5 = 1 3/10 + 4/10 = 1 7/10
2) 2 8/15 - 1 7/10 = 2 16/30 - 1 21/30 = 1 46/30 - 1 21/30 = 25/30 = 5/6
в) 4 14/45 - 1 7/15 - 3/5 = 2 11/45
1) 4 14/45 - 1 7/15 = 4 14/45 - 1 21/45 = 3 59/45 - 1 21/45 = 2 38/45
2) 2 38/45 - 3/5 = 2 38/45 - 27/45 = 2 11/45
г) 4 11/30 - 2 9/20 - 1/10 = 1 49/60
1) 4 11/30 - 2 9/20 = 4 22/60 - 2 27/60 = 3 82/60 - 2 27/60 = 1 55/60
2) 1 55/60 - 1/10 = 1 55/60 - 6/60 = 1 49/60
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Answers & Comments
Verified answer
А) 2 13/30 - (1 1/10 + 1/5) = 1 2/151) 1 1/10 + 1/5 = 1 1/10 + 2/10 = 1 3/10
2) 2 13/30 - 1 3/10 = 2 13/30 - 1 9/30 = 1 4/30 = 1 2/15
б) 2 8/15 - (1 3/10 + 2/5) = 5/6
1) 1 3/10 + 2/5 = 1 3/10 + 4/10 = 1 7/10
2) 2 8/15 - 1 7/10 = 2 16/30 - 1 21/30 = 1 46/30 - 1 21/30 = 25/30 = 5/6
в) 4 14/45 - 1 7/15 - 3/5 = 2 11/45
1) 4 14/45 - 1 7/15 = 4 14/45 - 1 21/45 = 3 59/45 - 1 21/45 = 2 38/45
2) 2 38/45 - 3/5 = 2 38/45 - 27/45 = 2 11/45
г) 4 11/30 - 2 9/20 - 1/10 = 1 49/60
1) 4 11/30 - 2 9/20 = 4 22/60 - 2 27/60 = 3 82/60 - 2 27/60 = 1 55/60
2) 1 55/60 - 1/10 = 1 55/60 - 6/60 = 1 49/60