18/7*(4/9+15/18)=
-1.3*6/5-5/6*3/25=
-27/20*(-5/9)-5/24*(-22/5)=
15*(1+1/3-1/5)=
(12/7-20/21)+56/16=
3/10+(-5/6)+2/3*(-3/8)=
(8/7-1/14+1/42)*12/46=
(6/5-3/4)*2/3=
8/5*3/4+11/8=
Решите пожалуйста :3