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Aliftinka
@Aliftinka
July 2022
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Решите пожалуйста , я не могу решить ...
1) 1 1/6 - 5/18 : 5 + 4,5 : 1/2
2) 5 14/15 - 3 4/7х = 4 2/3
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prettypushkova
Verified answer
1 1/6 - 5/18 : 5 + 4,5 : 1/2 = 10 1/9
1) 5/18 : 5 = 5/18 * 1/5 = 1/18
2) 4,5 : 1/2 = 45/10 * 2/1 = 45/5 = 9
3) 1 1/6 - 1/18 = 1 3/18 - 1/18 = 1 2/18 = 1 1/9
4) 1 1/9 + 9 = 10 1/9
5 14/15 - 3 4/7х = 4 2/3
3 4/7х = 5 14/15 - 4 2/3 = 5 14/15 - 4 10/15 = 1 4/15
х = 1 4/15 : 3 4/7 = 19/15 : 25/7 = 19/15 * 7/25 = 133/375
х = 133/375 - несократимая дробь
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Answers & Comments
Verified answer
1 1/6 - 5/18 : 5 + 4,5 : 1/2 = 10 1/91) 5/18 : 5 = 5/18 * 1/5 = 1/18
2) 4,5 : 1/2 = 45/10 * 2/1 = 45/5 = 9
3) 1 1/6 - 1/18 = 1 3/18 - 1/18 = 1 2/18 = 1 1/9
4) 1 1/9 + 9 = 10 1/9
5 14/15 - 3 4/7х = 4 2/3
3 4/7х = 5 14/15 - 4 2/3 = 5 14/15 - 4 10/15 = 1 4/15
х = 1 4/15 : 3 4/7 = 19/15 : 25/7 = 19/15 * 7/25 = 133/375
х = 133/375 - несократимая дробь