Schema question on lat,long coordinates

I am trying to output this with JSON
“coordinates”: [
33.5693,
33.9995
]

this is the closest I’ve been able to achieve
“coordinates”: [
"-96.79739537, 33.09392444"
]

(How can i configure the schema to remove the quotes around the coordinate values -96.79739537, 33.09392444?)

This is my failed attempt configuring the schema: