Question

помогите матем 6 класс​

Answer 1

Ответ:

Пошаговое объяснение:

а) 1. 6/19 + 2. 1/38 =

1. 12/38 + 2. 1/38 = 3. 13/38

б) 8. 3/11 - 5. 1/22 =

8. 6/22 - 5. 1/22 = 3. 5/22

в) 1. 6/15 - 22/45 =

1. 18/45 - 22/45 = 63/45 - 22/45 = 41/45

г) 2 - 1. 4/7 = 1. 7/7 - 1. 4/7 = 3/7

д) 4. 5/7 + 2. 9/14 =

4. 10/14 + 2. 9/14 = 6. 19/14 = 7. 5/14

е) 2. 3/8 + 1. 1/4 =

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

ж) 2,8 + 3. 3/4 =

2. 8/10 + 3. 3/4 =

2. 16/20 + 3. 15/20 =

5. 31/20 = 6. 11/20

з) 3,4 - 1. 2/3 =

3. 4/10 - 1. 2/3 =

3. 12/30 - 1. 20/30 =

2. 42/30 - 1. 20/30 =

1. 22/30 = 1. 11/15