Question

Номер 445 ! СРОЧНО !!!!!!!! ЗАРАНЕЕ СПС

Answer 1

=-2 1/4+4 2/3+7,6- 1 8/9-1 3/4-7,6=(-2 1/4-1 3/4)+(3 15/9-1 8/9)=-4+2 7/9=
=-3 9/9+2 7/9=-1 2/9
=-4/15+1,18-5/7+1 3/14-1 68+2 4/15=(-4/15+2 4/15)+(1,18-1 68)+
+(-5/7+1 3/14)=2-0,5+1/2=2