Try another version of this question
Solve `r + 1/2 = 1/3` for `r`.
`r` =
`r` =
Box 1: Enter your answer as a reduced fraction (like 5/3, not 10/6) or as an integer (like 4 or -2)
Do not enter mixed numbers
Enter DNE for Does Not Exist, oo for Infinity
`-1/6`