Question

360.Выполните действие:1/2+1/3 =1/4+2/5= 2/3+1/4 =3/4+2/5 =5/7-1/6 =3/4-1/3=​

Answer 1

Ответ:

Пошаговое объяснение:

1/2+1/3 = 3/6 + 2/6 = 5/6

1/4+2/5= 5/20 + 8/20 = 13/20

2/3+1/4 = 8/12 + 3/12 = 11/12

3/4+2/5 = 15/20 + 8/20 = 23/20 = 1 3/20

5/7-1/6 = 30/42 - 7/42 = 23/42

3/4-1/3=​ 9/12 - 4/12 = 5/12

Answer 2

Ответ:

1) 5/6

2) 13/20

3) 11/12

4) 23/20

5) 23/30

6) 5/12

Answer 3

1/2 + 1/3 To add these fractions, we need to find a common denominator. The least common multiple of 2 and 3 is 6. So, 1/2 becomes 3/6 and 1/3 becomes 2/6. Now we can add them: 3/6 + 2/6 = 5/6.

1/4 + 2/5 The least common multiple of 4 and 5 is 20. So, 1/4 becomes 5/20 and 2/5 becomes 8/20. Now we can add them: 5/20 + 8/20 = 13/20.

2/3 + 1/4 The least common multiple of 3 and 4 is 12. So, 2/3 becomes 8/12 and 1/4 becomes 3/12. Now we can add them: 8/12 + 3/12 = 11/12.

3/4 + 2/5 The least common multiple of 4 and 5 is 20. So, 3/4 becomes 15/20 and 2/5 becomes 8/20. Now we can add them: 15/20 + 8/20 = 23/20.

5/7 - 1/6 To subtract these fractions, we need to find a common denominator. The least common multiple of 7 and 6 is 42. So, 5/7 becomes 30/42 and 1/6 becomes 7/42. Now we can subtract them: 30/42 - 7/42 = 23/42.

3/4 - 1/3 The least common multiple of 4 and 3 is 12. So, 3/4 becomes 9/12 and 1/3 becomes 4/12. Now we can subtract them: 9/12 - 4/12 = 5/12.

So the results of the given operations are: 1/2 + 1/3 = 5/6 1/4 + 2/5 = 13/20 2/3 + 1/4 = 11/12 3/4 + 2/5 = 23/20 5/7 - 1/6 = 23/42 3/4 - 1/3 = 5/12.