function getRatio(width, height) {
    const divisor = [2, 3, 5, 7, 9];

    let result;
    do {
        for(let i of divisor) {
            result = false;

            if(!(width % i) && !(height % i)) {
                    width = width / i;
                    height = height / i;
                    result = true;
                    break;
            }
        }
    } while(result);

    return {
        width,
        height
    }
}