Question

выполни деление
2/7:5/7=
2/5:3/4=
4/7:13/5=
6/7:19/5=
​

Answer 1

2/7÷5/7=2/7*7/5=(2*7)/(7*5)=2/5=0,4

2/5÷3/4=2/5*4/3=(2*4)/(5*3)=8/15

4/7÷13/5=4/7*5/13=(4*5)/(7*13)=20/81

6/7÷19/5=6/7*5/19=(6*5)/(7*19)=30/133