Please help me to answer.this with solution i need your help please! Thanks!

1) 5/18+2/9=
2) 3 (12/17)=
3) (2/7)÷(5/8)=
4) 3/7-5/9=
5) 12÷2/3=
6) 7/15÷2/3=
7) 3/5-10=
8) 4/15+7/9=
9) 12/21(-3)=
10) (2/5)(5/18)=

Are you answer grazing?