<?php
 
$horasTrabalhadas = fixHour(11.40); // 11:40h
$horasSemanais = fixHour(0.25); // 25 minutos
$total = fixHour($horasTrabalhadas + $horasSemanais);
 
echo $total; // Saída: 12.05
 
function fixHour($num)
{
    $decimal = $num - floor($num); // A função floor arredonda o número para o próximo menor valor inteiro
 
    if ($decimal >= 0.60) {
        $num = ($num + 1) - 0.60;
        return fixHour($num); // Recursão
    }
 
    return $num;
}

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