diff --git a/README.md b/README.md
index 69290d1..b8b91f4 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ git clone https://code.smolnet.org/micke/mmathlib.git
 cd mmathlib
 g++ -o fractions fractions.cpp
 ./fractions
+g++ -o cnumber cnumber.cpp
+./cnumber
 ```
 
 **Output**
@@ -24,4 +26,18 @@ g++ -o fractions fractions.cpp
 (7/3)/(1/11)=(77/3)
 (7/3)/(1/11)=25.66666667
 0.75=(3/4)
+a = 3+2i
+a* = 3-2i
+a*a* = 13
+b = 4-3i
+b* = 4+3i
+b*b* = 25
+a + b = 7-i
+(a + b)* = 7+i
+a - b =  -1+5i
+(a - b)* = -1-5i
+a * b =  18-i
+(a * b)* = 18+i
+a / b = (6/25)+(17/25)i
+(a / b)* = (6/25)-(17/25)i
 ```
diff --git a/cnumber.cpp b/cnumber.cpp
new file mode 100644
index 0000000..8311fce
--- /dev/null
+++ b/cnumber.cpp
@@ -0,0 +1,23 @@
+#include <iostream>
+#include "cnumber.hpp"
+
+
+int main() {
+	cnumber a(3,2);
+	cnumber b(4,-3);
+
+	cout << "a = " << a << endl;
+	cout << "a* = " << a.conjugate() << endl;
+	cout << "a*a* = " << a * a.conjugate() << endl;
+	cout << "b = " <<  b << endl;
+	cout << "b* = " << b.conjugate() << endl;
+	cout << "b*b* = " << b * b.conjugate() << endl;
+	cout << "a + b = " << a + b << endl;
+	cout << "(a + b)* = " << (a + b).conjugate() << endl;
+	cout << "a - b =  " << a - b << endl;
+	cout << "(a - b)* = " << (a - b).conjugate() << endl;
+	cout << "a * b =  " << a * b << endl;
+	cout << "(a * b)* = " << (a * b).conjugate() << endl;
+	cout << "a / b = " << a / b << endl;
+	cout << "(a / b)* = " << (a / b).conjugate() << endl;
+}
diff --git a/cnumber.hpp b/cnumber.hpp
new file mode 100644
index 0000000..6c50a33
--- /dev/null
+++ b/cnumber.hpp
@@ -0,0 +1,90 @@
+#pragma once
+#include "../fractions/fractions.hpp"
+#include <iostream>
+
+using namespace std;
+
+class cnumber {
+private:
+  fraction r, i;
+
+public:
+  // Constructor
+  cnumber(const cnumber &z) {
+    r = z.r;
+    i = z.i;
+  }
+  cnumber(const fraction &a, const fraction &b) {
+    r = a;
+    i = b;
+  }
+  cnumber(int a, int b) {
+    r = a;
+    i = b;
+  }
+  cnumber(double a, double b) {
+    r = a;
+    i = b;
+  }
+  // Member functions
+  cnumber conjugate() const {
+    fraction a(this->r.get_n(), this->r.get_d());
+    fraction b(this->i.get_n(), this->i.get_d());
+    cnumber z(a, b * -1);
+    return z;
+  }
+
+  // Operators
+  cnumber operator+(const cnumber &that) const {
+    cnumber z(this->r + that.r, this->i + that.i);
+    return z;
+  }
+  cnumber operator-(const cnumber &that) const {
+    cnumber z(this->r - that.r, this->i - that.i);
+    return z;
+  }
+  cnumber operator*(const cnumber &that) const {
+    cnumber z((that.r * this->r) - (that.i * this->i),
+              (that.r * this->i) + (this->r * that.i));
+    return z;
+  }
+  cnumber operator*(const fraction &q) const {
+    cnumber that(q, fraction(0));
+    return *this * that;
+  }
+  cnumber operator/(const cnumber &that) const {
+    cnumber numerator((this->r * that.r) - (this->i * (that.i * -1)),
+                      (this->r * (that.i * -1)) + (that.r * this->i));
+    cnumber denominator((that.r * that.r) - (that.i * (that.i * -1)),
+                        (that.r * (that.i * -1)) + (that.r * that.i));
+    cnumber ratio(numerator.r / denominator.r, numerator.i / denominator.r);
+    return ratio;
+  }
+
+  friend ostream &operator<<(ostream &os, const cnumber &z) {
+    if (z.r != 0) {
+      os << z.r;
+      if ((z.i.get_sign() == 1) && (z.i > 0)) {
+        os << '+';
+      }
+    }
+    if (z.i != 0) {
+      if ((z.i != 1) && (z.i != -1)) {
+        os << z.i;
+      } else if (z.i == -1) {
+        os << '-';
+      }
+      os << 'i';
+    }
+    if (z.r == 0 && z.i == 0) {
+      os << '0';
+    }
+    return os;
+  }
+  void operator=(const cnumber &z) {
+    r = z.r;
+    i = z.i;
+  }
+  const bool operator==(const cnumber &z) const { return r == z.r && i == z.i; }
+  const bool operator!=(const cnumber &z) const { return r != z.r || i != z.i; }
+};