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Алиса1032
@Алиса1032
August 2022
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решите пример по действиям 7:(1 1/5-2,2)+1/10:(2,8-3/8)
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prettypushkova
Verified answer
7 : (1 1/5 - 2,2) + 1/10 : (2,8 - 3/8) = - 6 93/97
1) 1 1/5 - 2,2 = 1 1/5 - 2 1/5 = - 1
2) 7 : (-1) = - 7
3) 2,8 - 3/8 = 2 8/10 - 3/8 = 2 32/40 - 15/40 = 2 17/40
4) 1/10 : 2 17/40 = 1/10 : 97/40 = 1/10 * 40/97 = 4/97
5) - 7 + 4/97 = - (7 - 4/97) = - (6 97/97 - 4/97) = - 6 93/97
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Answers & Comments
Verified answer
7 : (1 1/5 - 2,2) + 1/10 : (2,8 - 3/8) = - 6 93/971) 1 1/5 - 2,2 = 1 1/5 - 2 1/5 = - 1
2) 7 : (-1) = - 7
3) 2,8 - 3/8 = 2 8/10 - 3/8 = 2 32/40 - 15/40 = 2 17/40
4) 1/10 : 2 17/40 = 1/10 : 97/40 = 1/10 * 40/97 = 4/97
5) - 7 + 4/97 = - (7 - 4/97) = - (6 97/97 - 4/97) = - 6 93/97