Question

-1/12·3/5-2/3:(-10/9)
-3/7*5/13-4/7*5/18; 3/5*7/9-3/5*(7/9-5/6)
СРОЧНО НАДО

Answer 1

-3/60-2/3*(-9/10)=-1/20-3/5=-1/20-12/20=-13/20

-15/91-20/126=-270/(91*18)-(260)/(126*13)=-530/1638=-265/819

21/45-3/5*(14/18-15/18)=21/45-3/5*(-1/18)=21/45+1/30= =42/90+3/90=45/90=1/2