Question

помогите пож по матем 502,503​

Answer 1

Ответ:

1) 3/4 - 1/4 = 2/4 = 1/2 или 0,5

2) 5/8 + 3/8 = 8/8 = 1

3) 7/12 - 5/12 = 2/12 = 1/6

4) 8/15 + 2/15 = 10/15 = 2/5 или 0,4

5) 3/10 + 1/10 = 4/10 = 2/5 или 0,4

6) 17/25 - 12/25 = 5/25 = 1/5 или 0,2

7) 1/30 + 7/30 = 8/30 = 4/15

8) 28/45 - 13/45 = 15/45 = 3/9 = 1/3

1)5/9 + 13/27 = 15/27 + 13/27 = 28/27 = 1 1/27

2) 3/8 + 5/24 = 9/24 + 5/24 = 14/24 = 7/12

3) 5/12 - 13/72 = 30/72 - 13/72 = 17/72

4) 3/5 - 1/7 = 21/35 - 5/35 = 16/35

5) 5/12 + 1/60 = 25/60 + 1/60 = 26/60 = 13/30

6) 9/17 - 19/68 = 36/68 - 19/38 = 17/38

7) 9/10 + 4/15 = 27/30 + 8/30 = 35/30 = 1 5/30 = 1 1/6

8) 4/15 - 11/60 = 16/60 - 11/60 = 5/60 = 1/12