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src
- main/scala/org/codecraftlabs/training
  - Rational.scala
- test/scala/org/codecraftlabs/training
  - RationalSpec.scala

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	`1`	`+package org.codecraftlabs.training`
	`2`	`+`
	`3`	`+class Rational (n: Int, d: Int) {`
	`4`	`+ require(d != 0)`
	`5`	`+`
	`6`	`+ val numer: Int = n`
	`7`	`+ val denom: Int = d`
	`8`	`+`
	`9`	`+ override def toString: String = numer + "/" + denom`
	`10`	`+`
	`11`	`+ def add(that: Rational): Rational =`
	`12`	`+ new Rational (numer * that.denom + that.numer * denom, denom * that.denom)`
	`13`	`+}`

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	`1`	`+package org.codecraftlabs.training`
	`2`	`+`
	`3`	`+import org.scalatest.flatspec.AnyFlatSpec`
	`4`	`+import org.scalatest.matchers.should.Matchers`
	`5`	`+`
	`6`	`+class RationalSpec extends AnyFlatSpec with Matchers {`
	`7`	`+ "1/2 + 2/3" should "7/6" in {`
	`8`	`+ val r1 = new Rational(1, 2)`
	`9`	`+ val r2 = new Rational(2, 3)`
	`10`	`+`
	`11`	`+ val result = r1.add(r2)`
	`12`	`+ result.numer shouldEqual 7`
	`13`	`+ result.denom shouldEqual 6`
	`14`	`+ }`
	`15`	`+}`

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