А) 10a/12 и 7b/12; б) 9a^2/24 и 10ab/24;
в) 21d/48 и 43c/48; г) 80t^2/350 и 49x^2/350
а) b/3a и 9/3a; б) 14/24c и 33/24c
в) 25/10b и 4/10b; г) 117a/432d и 40a/432d
а) y^2/(xy) и x^2/(xy); б) 2a^3/(a^2b^2) и 2b^3/(a^2b^2)
в) n^3/(n^2m^2) и m^3/(n^2m^2); г) 3c^3/(5tc) и t^3/(5tc)
а) 2b(a+b)/(10ab) и a(a-b)/(10ab); б) 42d^4/(360cd) и 50c^4/(360cd)
в) x(3-x)/(12xy) и 3(y+2)/(12xy); г) 20n^4/(270m^2n) и 63m^4/(270m^2n)