diff --git a/src/corelibs/math_handling/__init__.py b/src/corelibs/math_handling/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/corelibs/math_handling/math_helpers.py b/src/corelibs/math_handling/math_helpers.py
new file mode 100644
index 0000000..2355f80
--- /dev/null
+++ b/src/corelibs/math_handling/math_helpers.py
@@ -0,0 +1,35 @@
+"""
+Various math helpers
+"""
+
+import math
+
+
+def gcd(a: int, b: int):
+    """
+    Calculate: Greatest Common Divisor
+
+    Arguments:
+        a {int} -- _description_
+        b {int} -- _description_
+
+    Returns:
+        _type_ -- _description_
+    """
+    return math.gcd(a, b)
+
+
+def lcd(a: int, b: int):
+    """
+    Calculate: Least Common Denominator
+
+    Arguments:
+        a {int} -- _description_
+        b {int} -- _description_
+
+    Returns:
+        _type_ -- _description_
+    """
+    return math.lcm(a, b)
+
+# __END__
diff --git a/tests/unit/math_handling/__init__.py b/tests/unit/math_handling/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/unit/math_handling/test_math_helpers.py b/tests/unit/math_handling/test_math_helpers.py
new file mode 100644
index 0000000..d8a296a
--- /dev/null
+++ b/tests/unit/math_handling/test_math_helpers.py
@@ -0,0 +1,121 @@
+"""
+Unit tests for math_helpers module
+"""
+
+from corelibs.math_handling.math_helpers import gcd, lcd
+
+
+class TestGcd:
+    """Test cases for the gcd (Greatest Common Divisor) function"""
+
+    def test_gcd_basic_positive_numbers(self):
+        """Test GCD with basic positive numbers"""
+        assert gcd(12, 8) == 4
+        assert gcd(15, 10) == 5
+        assert gcd(21, 14) == 7
+
+    def test_gcd_coprime_numbers(self):
+        """Test GCD with coprime numbers (GCD should be 1)"""
+        assert gcd(13, 7) == 1
+        assert gcd(17, 19) == 1
+        assert gcd(25, 49) == 1
+
+    def test_gcd_same_numbers(self):
+        """Test GCD with same numbers"""
+        assert gcd(5, 5) == 5
+        assert gcd(100, 100) == 100
+
+    def test_gcd_with_zero(self):
+        """Test GCD when one or both numbers are zero"""
+        assert gcd(0, 5) == 5
+        assert gcd(5, 0) == 5
+        assert gcd(0, 0) == 0
+
+    def test_gcd_with_one(self):
+        """Test GCD when one number is 1"""
+        assert gcd(1, 5) == 1
+        assert gcd(100, 1) == 1
+
+    def test_gcd_large_numbers(self):
+        """Test GCD with large numbers"""
+        assert gcd(1000000, 500000) == 500000
+        assert gcd(123456, 789012) == 12
+
+    def test_gcd_reversed_order(self):
+        """Test GCD is commutative (order doesn't matter)"""
+        assert gcd(12, 8) == gcd(8, 12)
+        assert gcd(100, 35) == gcd(35, 100)
+
+    def test_gcd_negative_numbers(self):
+        """Test GCD with negative numbers"""
+        assert gcd(-12, 8) == 4
+        assert gcd(12, -8) == 4
+        assert gcd(-12, -8) == 4
+
+    def test_gcd_multiples(self):
+        """Test GCD when one number is a multiple of the other"""
+        assert gcd(10, 5) == 5
+        assert gcd(100, 25) == 25
+        assert gcd(7, 21) == 7
+
+
+class TestLcd:
+    """Test cases for the lcd (Least Common Denominator/Multiple) function"""
+
+    def test_lcd_basic_positive_numbers(self):
+        """Test LCD with basic positive numbers"""
+        assert lcd(4, 6) == 12
+        assert lcd(3, 5) == 15
+        assert lcd(12, 8) == 24
+
+    def test_lcd_coprime_numbers(self):
+        """Test LCD with coprime numbers (should be their product)"""
+        assert lcd(7, 13) == 91
+        assert lcd(11, 13) == 143
+        assert lcd(5, 7) == 35
+
+    def test_lcd_same_numbers(self):
+        """Test LCD with same numbers"""
+        assert lcd(5, 5) == 5
+        assert lcd(100, 100) == 100
+
+    def test_lcd_with_one(self):
+        """Test LCD when one number is 1"""
+        assert lcd(1, 5) == 5
+        assert lcd(100, 1) == 100
+
+    def test_lcd_with_zero(self):
+        """Test LCD when one or both numbers are zero"""
+        assert lcd(0, 5) == 0
+        assert lcd(5, 0) == 0
+        assert lcd(0, 0) == 0
+
+    def test_lcd_large_numbers(self):
+        """Test LCD with large numbers"""
+        assert lcd(100, 150) == 300
+        assert lcd(1000, 500) == 1000
+
+    def test_lcd_reversed_order(self):
+        """Test LCD is commutative (order doesn't matter)"""
+        assert lcd(4, 6) == lcd(6, 4)
+        assert lcd(12, 18) == lcd(18, 12)
+
+    def test_lcd_negative_numbers(self):
+        """Test LCD with negative numbers"""
+        assert lcd(-4, 6) == 12
+        assert lcd(4, -6) == 12
+        assert lcd(-4, -6) == 12
+
+    def test_lcd_multiples(self):
+        """Test LCD when one number is a multiple of the other"""
+        assert lcd(5, 10) == 10
+        assert lcd(3, 9) == 9
+        assert lcd(25, 100) == 100
+
+    def test_lcd_gcd_relationship(self):
+        """Test the mathematical relationship between LCD and GCD: lcd(a,b) * gcd(a,b) = a * b"""
+        test_cases = [(12, 8), (15, 10), (21, 14), (100, 35)]
+        for a, b in test_cases:
+            assert lcd(a, b) * gcd(a, b) == a * b
+
+# __END__