Question

пж помогите матем
сложнооооо
​

Answer 1

5/18 + 4/45; 11/63 - 5/42

Решение.

1) 4/45 = 8/90

2) 5/18 = 25/90

3) 8/90 + 25/90 = 33/90

4) 33/90 = 11/30

5) 11/63 = 22/126

6) 5/42 = 15/126

7) 22/126 - 15/126 = 7/126

8) 7/126 = 1/18

Ответ: 11/30, 1/18