Заполните пропуски. 1. 3/7 + __ =1; 2. 16/39 + __ =1; 3. 19/9 — __ =1; 4. 17+3 — __ =1.

Question

Заполните пропуски.
1. 3/7 + __ =1;
2. 16/39 + __ =1;
3. 19/9 — __ =1;
4. 17+3 — __ =1.

Answer 1

1.4/7
2.23/39
3.10/9
4.19

Answer 2

1. 3/7 + 4/7 = 1
2. 16/39 + 23/39 = 1.
3. 19/9 - 10/9 = 1
4. 17 + 3 - 20 = 1