The value of 1.666 in the p/q form is

60: 45 =12: 9 =4: 3 so the answer is 4: 3

c-   36

taxicab circle radius 9 has 4(9) = 36 points

the answer to this in exact form is 4/35 but in decimal form its 0.1142857

hope this if needed hmu