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KatyaBi
@KatyaBi
March 2022
2
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Помогите пожалуйста! Решите:
а) 1 1/8:3/4;
б) 3 3/5:2 7/10;
в) 4 3/7:1/7- 1 5/6*3
Я 10 БАЛЛОВ ДАЮ!!!
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Answers & Comments
rogov23rus
А)9/8*4/3=3/2=1,5
б)18/5*10/27=4/3=1целая 1/3
в)31/7*7-11/6*3=31-5,5=25,5
1 votes
Thanks 2
KatyaBi
а у кого правильно?
Nastya171167
А)1 1/8 : 3/4 = 9/8 : 3/4 = 9/8 * 4/3 = 36/24 = 3/2 = 1 1/2
б)3 3/5 : 2 7/10 = 18/5 : 27/10 = 18/5 * 10/27 = 180/135 = 4/3 = 1 1/3
в)4 3/7 : 1/7 - 1 5/6 * 3 = 31/7 : 1/7 - 11/6 * 3 = 31/7 * 7 - 11/6 * 3 = 31 - 11/6 * 3 = 31 - 11/2 = (31 × 2 - 11 × 1)/2 = 62/2 - 11/2 = 51/2 = 25 1/2
0 votes
Thanks 4
KatyaBi
а у кого правильно?
Nastya171167
и там и там только у меня подробно
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Answers & Comments
б)18/5*10/27=4/3=1целая 1/3
в)31/7*7-11/6*3=31-5,5=25,5
б)3 3/5 : 2 7/10 = 18/5 : 27/10 = 18/5 * 10/27 = 180/135 = 4/3 = 1 1/3
в)4 3/7 : 1/7 - 1 5/6 * 3 = 31/7 : 1/7 - 11/6 * 3 = 31/7 * 7 - 11/6 * 3 = 31 - 11/6 * 3 = 31 - 11/2 = (31 × 2 - 11 × 1)/2 = 62/2 - 11/2 = 51/2 = 25 1/2