Найдите произведение : 1) 1 3/4 * 2 2/5 * 5/21 = 2) 7/9 * 2 5/14 * 1 4/5 =

Question

Найдите произведение :
1) 1 3/4 * 2 2/5 * 5/21 =
2) 7/9 * 2 5/14 * 1 4/5 =

Answer 1

13/4•22/5•5/21=143/42=3целых 17/42