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fedosovtima
@fedosovtima
July 2022
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1) 3 1/3*(2 3/4 : 5 1/2) 2) (1 3/5+2 1/5):1 9/10+(1 7/10-4/5):2/7
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svetazuna
1. 3 1/3 * (2 3/4 : 5 1/2) =
2 13/21
1) 2 3/4 : 5 1/2 = 11/4 : 7/2 = 11/4 * 2/7 = 11/14,
2) 3 1/3 * 11/14 = 10/3 * 11/14 = 55/21 = 2 13/21,
2. (1 3/5 + 2 1/5) : 1 9/10 + (1 7/10 - 4/5) : 2/7 =
5 3/20,
1) 1 3/5 + 2 1/5 = 3 4/5,
2) 3 4/5 : 1 9/10 = 19/5 : 19/10 = 19/5 * 10/19 = 2,
3) 1 7/10 - 4/5 = 17/10 - 8/10 = 9/10,
4) 9/10 : 2/7 = 9/10 * 7/2 = 63/20 = 3 3/20,
5) 2 + 3 3/20 = 5 3/20
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Answers & Comments
1) 2 3/4 : 5 1/2 = 11/4 : 7/2 = 11/4 * 2/7 = 11/14,
2) 3 1/3 * 11/14 = 10/3 * 11/14 = 55/21 = 2 13/21,
2. (1 3/5 + 2 1/5) : 1 9/10 + (1 7/10 - 4/5) : 2/7 = 5 3/20,
1) 1 3/5 + 2 1/5 = 3 4/5,
2) 3 4/5 : 1 9/10 = 19/5 : 19/10 = 19/5 * 10/19 = 2,
3) 1 7/10 - 4/5 = 17/10 - 8/10 = 9/10,
4) 9/10 : 2/7 = 9/10 * 7/2 = 63/20 = 3 3/20,
5) 2 + 3 3/20 = 5 3/20