Помогите срочно!!!!!!!!!!!!!

Question

Помогите срочно!!!!!!!!!!!!!

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Answer 1

1)4/9:11/9=4/9*9/11=4/11

2)0,8:0,03=8/10:3/100=8/10"100/3=80/3

3) 2 5/8:3 1/6=21/8*6/19=63/76

4) 3 1/2:3,6=7/2*10/36=70/72=35/36