MinuQ

case class MinuQ(m:Int, n:Int) {
  def gcd(a: Int,b: Int): Int = {
    if(b==0)
      a
    else
      gcd(b, a%b)
  }
  override def toString() = m.toString() +"/"+n.toString()
  def +(a:MinuQ) = {
      var mm = m*a.n + n*a.m
      var nn = n*a.n
      val d = gcd(nn,mm)
      mm = mm/d
      nn = nn/d
      MinuQ(mm,nn)
    }
  def *(a:MinuQ) = {
    var mm = m*a.m
    var nn = n*a.n
    val d = gcd(nn,mm)
    mm = mm/d
    nn = nn/d
    MinuQ(mm,nn)
  }
}

object Prog2 extends App {
  val a = MinuQ(1,4)
  val b = MinuQ(1,4)
  val c = a+b*b
  printf("arv: %s\n", c.toString)
}