diff --git a/fraction.cpp b/fraction.cpp
index 01ffc3c..d108eed 100644
--- a/fraction.cpp
+++ b/fraction.cpp
@@ -35,6 +35,18 @@ namespace FractionNS {
     this->m_numerator = numerator / gcd;
     this->m_denominator = denominator / gcd;
   }
+  Fraction::Fraction(int n) {
+    this->m_numerator = n;
+    this->m_denominator = 1;
+  }
+  Fraction::Fraction(float n) {
+    // TODO
+    throw std::runtime_error("Not yet implemented");
+  }
+  Fraction::Fraction(const Fraction& n) {
+    this->m_numerator = n.getNumerator();
+    this->m_denominator = n.getDenominator();
+  }
 
   int Fraction::getNumerator() const { return m_numerator; }
   int Fraction::getDenominator() const { return m_denominator; }