Question

Пожалуйста помогите!!!!

Answer 1

Ответ:

1) (7/18 + 1/6) + 7/9 = 1 целая 1/3

2) 12/170 + 13/17 + 3/34 = 157/170

3) 5/17 + (3/85 + 5/6) = 1 целая 83/510

4) 5/12 + (1/18 + 3/4) = 1 целая 2/9

5) 2/15 + (2/25 + 5/9) = 173/225

Пошаговое объяснение:

1) 1/6 = 3/18

7+3 = 10

7/9 = 14/18

10+14 = 24

24/18 = 1 6/18 = 1 1/3

2) 13/17 = 130/170

3/34 = 15/170

12+130+15 = 157

3) НОК (17, 85, 6) = 510

5/17 = 150/510

3/85 = 18/510

5/6 = 425/510

150+18+425 = 593

593/510 = 1 83/510

4) НОК (12, 18, 4) = 36

5/12 = 15/36

1/18 = 2/36

3/4 = 27/36

15+2+27=44

44/36 = 1 8/36 = 1 2/9

5) НОК (15, 25, 9) = 225

2/15 = 30/225

2/25 = 18/225

5/9 = 125/225

30+18+125=173