(-2又3分之1)的105次方×(49分之9)的53次方
=(-7/3)^105*(9/49)^53
=(-7/3)^105*[(3/7)^2]^53
=(-7/3)^105*(3/7)^106
=(-7/3)^105*(3/7)^105*(3/7)
=(-7/3*3/7)^105*(3/7)
=(-1)^105*(3/7)
=-1*(3/7)
=-3/7
(-2又3分之1)的105次方×(49分之9)的53次方
=(-7/3)^105*(9/49)^53
=(-7/3)^105*[(3/7)^2]^53
=(-7/3)^105*(3/7)^106
=(-7/3)^105*(3/7)^105*(3/7)
=(-7/3*3/7)^105*(3/7)
=(-1)^105*(3/7)
=-1*(3/7)
=-3/7