Question

срочно!!! пж помогите!!!

Answer 1

1) 7+2,7<15+3,2
9,7<18,2
2)3/4+3>5/8+1/4
15/4>7/8
3) 7/12+1/4>3/8+1/5
10/12>27/40
5/6>27/40
4) 2/15+2/3<3/5+14/15
12/15<23/15
4/5<23/15