1) 3(x+2y)/ 10(x+2y)=3/10
2) b^3/ab^2-b^4=b^3/b^2(a-b^2)=b/(a-b^2)
3)m^2n-m^3/ mn^3-m^22n^2=m^2(n-m)/ mn^2(n-m)=m/n^2
4) 3a+6b/a^2-4b^2=3(a+2b)/(a+2b)(a-2b)=3/(a-2b)
5) 3a-6b/4b^2-a^2=-3(2b-a)/(2b-a)(2b+a)=-3/(2b+a)
6) (a-2b)^2/4b^2-a^2= -(2b-a)^2/(2b-a)(2b+a)=(a-2b)/(2b+a)
1) 3(x+2y)/ 10(x+2y)=3/10
2) b^3/ab^2-b^4=b^3/b^2(a-b^2)=b/(a-b^2)
3)m^2n-m^3/ mn^3-m^22n^2=m^2(n-m)/ mn^2(n-m)=m/n^2
4) 3a+6b/a^2-4b^2=3(a+2b)/(a+2b)(a-2b)=3/(a-2b)
5) 3a-6b/4b^2-a^2=-3(2b-a)/(2b-a)(2b+a)=-3/(2b+a)
6) (a-2b)^2/4b^2-a^2= -(2b-a)^2/(2b-a)(2b+a)=(a-2b)/(2b+a)