-2.1*3.8= 1 11/13*(-2 7/16 )= -18.36:18= -14.16:(-0.6)= -3.4*2.7=-1 3/11*(-2 2/21)=...

Question

-2.1*3.8=
1 11/13*(-2 7/16 )=
-18.36:18=
-14.16:(-0.6)=
-3.4*2.7=
-1 3/11*(-2 2/21)=
-12.72:(-0.4)=
15.45:(-15)=

Answer 1

1) -7.98    
3) -1.02   
2) 2997/208 дробь числ. и знамен.  
4) 23.6  
5) -9.18  
6) 26/21 числ. знамен.
7) 31.8  
8) -1.03