Question

найдите произведение 9/20*5/8*4/15​

Answer 1

Пошаговое объяснение:

9/10 * 7/8 * 5/6 = (9/10 * 5/6) * 7/8 = (3/2 * 1/2) * 7/8 = 3/4 * 7/8 = 21/32

17/13 * 26/51 * 8/9 = 1/1 * 2/3 * 8/9 = 16/27

9/20 * 5/8 * 4/15 = 9/20 * 1/2 * 1/3 = 9/20 * 1/6 =

3/20 * 1/2 = 3/40

Answer 2

Ответ:

Пошаговое объяснение:

а)

9/10 * 7/8 * 5/6 = (9/10 * 5/6) * 7/8 = (3/2 * 1/2) * 7/8 = 3/4 * 7/8 = 21/32

г)

17/13 * 26/51 * 8/9 = (17/13 * 26/51) * 8/9 = 2/3 * 8/9 =  16/27

ж)

9/20 * 5/8 * 4/15 = (9/20 * 4/15) * 5/8 = 3/25 * 5/8 = 3/40