Question

Упростите выражение 1)3/7а×8/9b.2)3(1/6c)×7/9d.3)3(3/7m)×3b×4(3/8p)

Answer 1

1.  3/7a*8/9b=8/21ab
2.  3(1/6c)*7/9d=2(25/54)cd
3.  3(3/7m)*3b*4(3/8p)=45mbp