Question

Ayuda es para mañana .....

Answer 1

Explicación paso a paso:

ya lo demás no me lo se espero te sirva

Answer 2

1) 1/4 + 2/4 + 3/4 = 6/4

2) 2/7 + 3/7 + 1 = 2/7 + 3/7 + 7/7 = 12/7

1/1 x 7 = 7/7

3) 4 + 1/3 + 2/3 = 12/3 + 1/3 + 2/3 = 15/3

4/1 x 3 = 12/3

4) 7/5 + 2/5 + 3 = 7/5 + 2/5 + 15/5 = 24/5

3/1 x 5 = 15/5

5) 4/9 - 2/9 = 2/9

6) 3/2 - 1/2 = 2/2 (1)

7) 3 - 3/10 = 30/10 - 3/10 = 27/10

3/1 x 10 = 30/10

8) 2 - 1/5 = 10/5 - 1/5 = 9/5

2/1 x 5 = 10/5

9) 9/4 - 1 = 9/4 - 4/4 = 5/4

1/1 x 4 = 4/4

10) 6/4 + 3/2 + 1/2 = 6/4 + 6/4 + 2/4 = 14/4

2 x 2 = 4

3/2 x 2 = 6/4

1/2 x 2 = 2/4

11) 2/3 + 2/6 + 7/6 = 4/6 + 2/6 + 7/6 = 13/6

3 x 2 = 6

2/3 x 2 = 4/6

12) 4/10 + 1/5 + 3/5 = 4/10 + 2/10 + 6/10 = 12/10

5 x 2 = 10

1/5 x 2 = 2/10

3/5 x 2 = 6/10

13) 6/4 + 5/2 + 1/2 = 6/4 + 10/4 + 2/4 = 18/4

2 x 2 = 4

5/2 x 2 = 10/4

1/2 x 2 = 2/4

14) 9/3 + 2/6 - 1/3 = 18/6 + 2/6 - 2/6 = 18/6

3 x 2 = 6

9/3 x 2 = 18/6

1/3 x 2 = 2/6

15) 6/18 + 1/3 + 5/6 = 6/18 + 6/18 + 15/18 = 27/18

3 x 6 = 18

6 x 3 = 18

1/3 x 6 = 6/18

5/6 x 3 = 15/18

16) 4 + 6/5 - 2/5 = 20/5 + 6/5 - 2/5 = 24/5

4/1 x 5 = 20/5

17) 4/7 + 2 - 1/7 = 4/7 + 14/7 - 1/7 = 17/7

2/1 x 7 = 14/7

18) 2 + 3/5 - 1/5 = 10/5 + 3/5 - 1/5 = 12/5

2/1 x 5 = 10/5

19) 6 + 3/10 - 2/10 = 60/10 + 3/10 - 2/10 = 61/10

6/1 x 10 = 60/10

20) 4/2 + 1 - 1/2 = 4/2 + 2/2 - 1/2 = 5/4

1/1 x 2 = 2/2

Atentamente una de primaria.