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соня1325
@соня1325
August 2022
2
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Выполните действия : 4 1/9 - 1 2/9 × 2 3/12
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Galinka23
Verified answer
1)1 2/9 × 2 3/12 = 11/9 × 9/4 = 11/4 = 2 3/4
2) 4 1/9 - 2 3/4 = 37/9 - 11/4 =(37 × 4 - 11 × 9)/36 = 148/36 - 99/36 = 49/36 = 1 13/36
ОТВЕТ : 1 13/36
2 votes
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prettypushkova
Verified answer
4 1/9 - 1 2/9 * 2 3/12 = 1 целая 13/36
1) 1 2/9 * 2 3/12 = 11/9 * 27/12 = (11*3)/(1*12) = 33/12 = 2 9/12
2) 4 1/9 - 2 9/12 = 4 4/36 - 2 27/36 = 3 40/36 - 2 27/36 = 1 13/36
0 votes
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Answers & Comments
Verified answer
1)1 2/9 × 2 3/12 = 11/9 × 9/4 = 11/4 = 2 3/42) 4 1/9 - 2 3/4 = 37/9 - 11/4 =(37 × 4 - 11 × 9)/36 = 148/36 - 99/36 = 49/36 = 1 13/36
ОТВЕТ : 1 13/36
Verified answer
4 1/9 - 1 2/9 * 2 3/12 = 1 целая 13/361) 1 2/9 * 2 3/12 = 11/9 * 27/12 = (11*3)/(1*12) = 33/12 = 2 9/12
2) 4 1/9 - 2 9/12 = 4 4/36 - 2 27/36 = 3 40/36 - 2 27/36 = 1 13/36