3/4÷1/5=?,7/8÷5/6=?,12/7÷8/21=?

Question

3/4÷1/5=?,7/8÷5/6=?,12/7÷8/21=?

Answer 1

1)15/4 или 3целых 3/4
2)21/20 1 целая 1/20
3)9/4 2 целых 1/4

Answer 2

1)9\29 2)2|25 3)1 1|3