{
    "version": 1.0,
    "title": "Mixed Numbers and Improper Fractions",
    "type": "rich",
    "html": "<iframe width=\"500\" height=\"500\" style=\"border:3px solid black; margin:auto; display:block\" frameborder=\"0\" src=\"https://crosswordlabs.com/embed/mixed-numbers-and-improper-fractions\"></iframe>",
    "width": 500,
    "height": 500,
    "thumbnail_url": "https://crosswordlabs.com/image/11494564.svg",
    "thumbnail_width": 100,
    "thumbnail_height": 100
}