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6.25 = 6 1/4
2.8 = 2 4/5
0.5 = 1/2
6.1 = 6 1/10
1.4 = 1 2/5
2.1 = 2 1/10
1) 6 1/4 - 2 4/5 = 5 25/20 - 2 16/20 = 3 9/20
2) 3 9/20 * 20/23 = 69/20 * 20/23 = 69/23 = 3
3) 3 5/21 + 1 1/3 = 3 5/21 + 1 7/21 = 4 12/21
4) 4 12/21 * 7/16 = 96/21 * 7/16 = 6/3 = 2
5) 3/2 = 1.5
6) 14/15 + 1 2/5 = 14/15 + 21/15 = 35/15 = 2 1/3
7) 2 1/10 / 2 1/3 = 21/10 / 7/3 = 21/10 * 3/7 = 3/10 * 3 = 9/10
8) 6 1/10 + 9/10 = 61/10 + 9/10 = 70/10 = 7
9) 1/2 * 7 = 3.5
10) 3.5 + 1.5 = 5
Ответ: 5
2.8 = 2 4/5
0.5 = 1/2
6.1 = 6 1/10
1.4 = 1 2/5
2.1 = 2 1/10
1) 6 1/4 - 2 4/5 = 5 25/20 - 2 16/20 = 3 9/20
2) 3 9/20 * 20/23 = 69/20 * 20/23 = 69/23 = 3
3) 3 5/21 + 1 1/3 = 3 5/21 + 1 7/21 = 4 12/21
4) 4 12/21 * 7/16 = 96/21 * 7/16 = 6/3 = 2
5) 3/2 = 1.5
6) 14/15 + 1 2/5 = 14/15 + 21/15 = 35/15 = 2 1/3
7) 2 1/10 / 2 1/3 = 21/10 / 7/3 = 21/10 * 3/7 = 3/10 * 3 = 9/10
8) 6 1/10 + 9/10 = 61/10 + 9/10 = 70/10 = 7
9) 1/2 * 7 = 3.5
10) 3.5 + 1.5 = 5
Ответ: 5
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