Respuesta :

4/8 is mary and it is 0.5
12/18 is nicole and it is .6666
mary runs faster
[tex] \frac{4}{8} = \frac{x}{1} [/tex]

4/8 or 1/2 laps per minute 

[tex] \frac{12}{18} = \frac{x}{1} [/tex]

12/18 or 2/3 laps per minute 

Nicole ran the fastest