No, you can divide both of those by 16.
45 is already in simplest form
Yes.
2/4 = 1/2
Thirty-seven and twenty-five thousandths.
thirty-one and nine twentieths
libra
0.875
0.007
11/20
0.61
11/8 = 1.375
We're not sure if this is what you mean, but you could write or say twelve and thirty seven hundredths. Don't forget the 'ths' after hundred.