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Маришка1011
@Маришка1011
July 2022
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решите пожалуйста пример с действиями
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fanta2310
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9 1/2 : 1,9 - 4 1/5 (6 + 7 1/2) : 15
------------------------ + ------------------------ = 0,4 + 0,1 = 0,5 = 1/2
2,32 * 15/29 + 4/5 (1 7/15 + 1/3) * 5
1) 9 1/2 : 1,9 = 19/2 : 19/10 = 19/2 * 10/19 = 10/2 = 5
2) 5 - 4 1/5 = 4 5/5 - 4 1/5 = 4/5
3) 2,32 * 15/29 = 232/100 * 15/29 = 8/20 * 3/1 = 24/20
4) 24/20 + 4/5 = 24/20 + 16/20 = 40/20 = 2
5) 4/5 : 2 = 4/5 * 1/2 = 2/5 = 0,4
6) 6 + 7 1/2 = 5 2/2 + 7 1/2 = 12 3/2 = 13 1/2
7) 13 1/2 : 15 = 13,5 : 15 = 0,9
8) 1 7/15 + 1/3 = 1 7/15 + 5/15 = 1 12/15
9) 1 12/15 * 5 = 27/15 * 5 = 27/3 = 9
10) 0,9 : 9 = 0,1
11) 0,4 + 0,1 = 0,5 или 1/2
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Answers & Comments
Verified answer
9 1/2 : 1,9 - 4 1/5 (6 + 7 1/2) : 15------------------------ + ------------------------ = 0,4 + 0,1 = 0,5 = 1/2
2,32 * 15/29 + 4/5 (1 7/15 + 1/3) * 5
1) 9 1/2 : 1,9 = 19/2 : 19/10 = 19/2 * 10/19 = 10/2 = 5
2) 5 - 4 1/5 = 4 5/5 - 4 1/5 = 4/5
3) 2,32 * 15/29 = 232/100 * 15/29 = 8/20 * 3/1 = 24/20
4) 24/20 + 4/5 = 24/20 + 16/20 = 40/20 = 2
5) 4/5 : 2 = 4/5 * 1/2 = 2/5 = 0,4
6) 6 + 7 1/2 = 5 2/2 + 7 1/2 = 12 3/2 = 13 1/2
7) 13 1/2 : 15 = 13,5 : 15 = 0,9
8) 1 7/15 + 1/3 = 1 7/15 + 5/15 = 1 12/15
9) 1 12/15 * 5 = 27/15 * 5 = 27/3 = 9
10) 0,9 : 9 = 0,1
11) 0,4 + 0,1 = 0,5 или 1/2