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sayferbil
@sayferbil
December 2021
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помогите пожалуйста , номер 351 и можно с действиями
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Darkyel
1) Первым делом делаем умножение ( / - деление ; * - умножение )
5 3/4 * 8 - 2 1/3 * 1 3/14 - 1 37/48 * 2 2/15= 11 - 119/42 - 2720/720 =
Далее сводим и отнимаем
= 11 - 2 35/42 - 3 560/720 = 6 - 5/6 - 7/9 = 5 1/6 - 7/9 = 5 3/18 - 14/18 = 4 7/18
2) 1 действие в скобках
1 3/22 * 2 14/15 - ( 1 5/8 + 2 1/8 * 11/17 ) * 3/7= 1100/330 - ( 1 5/8 + 187/136 ) * 3/7 = 1100/330 - 3 * 3/7 = 110/33 - 9/7 = 10/3 - 9/7 = 70/21 - 27/21 = 43/21 = 2 1/21
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sayferbil
Спасибо огрооомное )))
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Answers & Comments
5 3/4 * 8 - 2 1/3 * 1 3/14 - 1 37/48 * 2 2/15= 11 - 119/42 - 2720/720 =
Далее сводим и отнимаем
= 11 - 2 35/42 - 3 560/720 = 6 - 5/6 - 7/9 = 5 1/6 - 7/9 = 5 3/18 - 14/18 = 4 7/18
2) 1 действие в скобках
1 3/22 * 2 14/15 - ( 1 5/8 + 2 1/8 * 11/17 ) * 3/7= 1100/330 - ( 1 5/8 + 187/136 ) * 3/7 = 1100/330 - 3 * 3/7 = 110/33 - 9/7 = 10/3 - 9/7 = 70/21 - 27/21 = 43/21 = 2 1/21