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Anna20060628
@Anna20060628
August 2022
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решите пж по действиям , даю 32 балла (1,75+5\6*2,8):(1,75+2,2\3)=
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AnnaCT
Думаю, что так. Но ты сам(а) на всякий случай проверь)
2 votes
Thanks 4
Anna20060628
Спасибо большое.
sturm141
1,75 : 1 1/8 + 2/18 = 1 целая 2/3
1) 1,75 : 1 1/8 = 1 3/4 : 9/8 = 7/4 * 8/9 = (7*2)/(1*9) = 14/9 = 1 5/9
2) 1 5/9 + 2/18 = 1 5/9 + 1/9 = 1 6/9 = 1 2/3
(0,3 - 3/20 ) * 2 6/7 = 3/7
1) 0,3 - 3/20 = 3/10 - 3/20 = 6/20 - 3/20 = 3/20
2) 3/20 * 2 6/7 = 3/20 * 20/7 = 3/7
(1,08 - 2/25) : 5/9 = 1,8
1) 1,08 - 2/25 = 1,08 - 0,08 = 1
2) 1 : 5/9 = 1 * 9/5 = 9/5 = 1 целая 4/5 = 1,8
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Answers & Comments
1) 1,75 : 1 1/8 = 1 3/4 : 9/8 = 7/4 * 8/9 = (7*2)/(1*9) = 14/9 = 1 5/9
2) 1 5/9 + 2/18 = 1 5/9 + 1/9 = 1 6/9 = 1 2/3
(0,3 - 3/20 ) * 2 6/7 = 3/7
1) 0,3 - 3/20 = 3/10 - 3/20 = 6/20 - 3/20 = 3/20
2) 3/20 * 2 6/7 = 3/20 * 20/7 = 3/7
(1,08 - 2/25) : 5/9 = 1,8
1) 1,08 - 2/25 = 1,08 - 0,08 = 1
2) 1 : 5/9 = 1 * 9/5 = 9/5 = 1 целая 4/5 = 1,8