diff --git a/include/vrv/fraction.h b/include/vrv/fraction.h
index d26430e92b..c9fcb9b3f2 100644
--- a/include/vrv/fraction.h
+++ b/include/vrv/fraction.h
@@ -20,7 +20,8 @@ class Fraction {
 
 public:
     // Constructors - make them explicit to avoid type conversion
-    explicit Fraction(int num = 0, int denom = 1);
+    explicit Fraction(int num = 0) : m_numerator(num), m_denominator(1) {}
+    explicit Fraction(int num, int denom);
     explicit Fraction(data_DURATION duration);
 
     // Enable implicit conversion constructor for `int`
diff --git a/src/fraction.cpp b/src/fraction.cpp
index 9fd59c0b36..e5c270b96d 100644
--- a/src/fraction.cpp
+++ b/src/fraction.cpp
@@ -29,7 +29,7 @@ Fraction::Fraction(int num, int denom)
         denom = 1;
     }
     m_denominator = denom;
-    Reduce();
+    this->Reduce();
 }
 
 Fraction::Fraction(data_DURATION duration)
@@ -39,7 +39,7 @@ Fraction::Fraction(data_DURATION duration)
     int den = pow(2, (duration + 1));
     m_numerator = 8;
     m_denominator = den;
-    Reduce();
+    this->Reduce();
 }
 
 Fraction Fraction::operator+(const Fraction &other) const