first you look for the place example the first question 46.339 it's place is 9 as u start from right is not the way you start from the left side left u start with ones but right you start with tenths so 3 is tenths the other 3 is is hundredths thus making 9 thousandths.Making the values 0.009 or nine thousandths.
Then next is 142,694.11 is rather much simple than the other one so it goes like this place of the first 1is tenths the other 1is hundredths now about the value the first number on the left make it be a zero so as to get the value much easier so this one would be 0.01 because the second 1was hundredths
The last one 5,607.8 place value is tenths because as I started by teaching u that the first right no. is tenths . so the value would be 0.8 or eight tenths, thank you for ask, ask and ask because well are glad to answer have a great life.