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ника530
@ника530
August 2021
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Вычислите (15/98-17/28):4 5/21+(4/40-3/20)*21 3/7
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tanped
1)15/98-17/28=30/196-119/196=-89/196
2)4/40-3/20=4/40-6/40=-2/40
3)-89/196:4 5/21=-89/196:89/21=-89/196*21/89=-3/28
4)-2/40*21 3/7=-2/40*150/7=-30/28
5)-3/28+(-30/28)=-33/28=-1 5/28
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Answers & Comments
2)4/40-3/20=4/40-6/40=-2/40
3)-89/196:4 5/21=-89/196:89/21=-89/196*21/89=-3/28
4)-2/40*21 3/7=-2/40*150/7=-30/28
5)-3/28+(-30/28)=-33/28=-1 5/28