Yes, to 14/45. Add the digits, they're both multiples of 3 and 9.
The LCM is 226800.
No
No, that's it, it cannot be reduced
3 and 3/500
3 and 5/8
72/126 - 49/126 = 23/126
405/432 = 15/16
405/1000 = 81/200
6/25
no...
(2/3)*126 = 2*126/3 = 84
126 over 147 in lowest terms is 6/7