diff --git a/nessesary/fraction.py b/nessesary/fraction.py
new file mode 100644
index 0000000..a1da5e7
--- /dev/null
+++ b/nessesary/fraction.py
@@ -0,0 +1,65 @@
+class Fraction:
+    def __init__(self, numer, denom):
+        self.numer = numer
+        self.denom = denom
+        self.floating = numer/denom
+
+    def __add__(self, other):
+        """
+        Add Fraction.
+        >>> m1 = Fraction(2, 3)
+        >>> m2 = Fraction(5, 7)
+        >>> m3 = m1 + m2
+        >>> print(m3)
+        29/21
+        """
+        denom = self.denom * other.denom
+        numer = self.numer*other.denom + other.numer*self.denom
+        result = Fraction(numer, denom)
+        return result
+       
+
+    def __sub__(self, other):
+        """
+        Substract Fraction.
+        >>> m1 = Fraction(2, 3)
+        >>> m2 = Fraction(5, 7)
+        >>> m3 = m1 - m2
+        >>> print(m3)
+        -1/21
+        """
+        denom = self.denom * other.denom
+        numer = self.numer*other.denom - other.numer*self.denom
+        result = Fraction(numer, denom)
+        return result
+
+    def __mul__(self, other):
+        """
+        Multiply Fraction.
+        >>> m1 = Fraction(2, 3)
+        >>> m2 = Fraction(5, 7)
+        >>> m3 = m1 * m2
+        >>> print(m3)
+        10/21
+        """
+        denom = self.denom * other.denom
+        numer = self.numer * other.numer
+        result = Fraction(numer, denom)
+        return result
+
+    def __truediv__(self, other):
+        """
+        Divide Fraction with other one.
+        >>> m1 = Fraction(2, 3)
+        >>> m2 = Fraction(5, 7)
+        >>> m3 = m1 / m2
+        >>> print(m3)
+        14/15
+        """
+        denom = self.denom * other.numer
+        numer = self.numer * other.denom
+        result = Fraction(numer, denom)
+        return result
+
+    def __str__(self) -> str:
+        return f"{self.numer}/{self.denom}"
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