How to remove decimal from JavaScript function return

I was hoping someone could guide me maybe it can’t be done? I have a function and I’m trying to remove the decimal (I want a whole number return)

function studentsPerAdmin(students, teachers, helpers) {
  const average = students / (teachers + helpers);
  if (average > 10) {
    console.log(`There are on average ${average} students for each educator.`);
  } else {
    console.log('Unfortunately this class will be cancelled due to not having enough students enrolled.');
  }
  return average
}


studentsPerAdmin(41, 1, 2)

I’ve tried using the math functions such as math.round() but I’m still learning and I don’t think I’m using it correctly. So far the result is

There are on average 13.666666666666666 students for each educator.