449. Найдите частное:
6÷7/9
13÷26/29
9/16÷6
2 10/13÷3 3/26 хлп​

1)6:7/9=6/1:7/9=6/1×9/7=6×9/1×7=54/7=7 5/7;

2)13:26/29=13/1:26/29=13/1×29/26=13×29/1×26=377/26=14 13/26=14 1/2;

3)9/16:6=9/16:6/1=9/16×1/6=9×1/16×6=9/96=3/32;

4)2 10/13:3 3/26=36/13:81/26=36/13×26/81=36×26/13×81=936/1.053=8/9;

Вроде правильно.