6
1 (a whole).
3 of anything plus 3 more of the same thing is 6 of them.
1/50 is the the simplest form of 0.02.
It is in its simplest form: 4r+r = 5r
1 and (3/4) = 1.751.75 + 1.75 = 3.5 (or three and a half)
17/12
It is: 6
w + 2x + 3w - 2xw = 2x + 4w - 2xw, in simplest form
-4y
4x
6n
It is: 12x+9