Question

Помогите задачу и примеры примеры первая строчка

Answer 1

№512

1)9/25 * 5 = 9/5 = 1 4/5 - ширина

2) 9/25 * 9/5 = 81/125 - площадь

№ 513

1) 2 2/3 * 9/32 * 5 1/3 = 8/3 * 9/32 * 16/3 = 3/4 * 16/3 = 4

2) 4 2/5 * 15/77 * 7/20 = 22/5 * 15/77 * 7/20 = 6/7 * 7/20 = 3/10

3) его не видно.

4) 5 2/5 * 40/81 * 15/16 = 27/5 * 40/81 * 15/16 = 24/9 * 15/16 = 15/6 = 2 3/6 = 2 1/2

5) 6 1/4 * 1 1/35 * 2 1/3 = 25/4 * 36/35 * 7/3 = 15/1 = 15

6) тоже не видно

7) 15/16 * 1 13/27 * 2 4/25 = 15/16 * 40/27 * 54/25 = 3/1 = 3

8) 3 9/10 * 8/13 * 4 1/6 = 39/10 = 8/13 * 25/6 = 100/39 = 2 22/39