diff --git a/Libraries/LibCrypto/BigFraction/BigFraction.cpp b/Libraries/LibCrypto/BigFraction/BigFraction.cpp
index dea8204942e..7b6b712d5f1 100644
--- a/Libraries/LibCrypto/BigFraction/BigFraction.cpp
+++ b/Libraries/LibCrypto/BigFraction/BigFraction.cpp
@@ -140,6 +140,11 @@ double BigFraction::to_double() const
     return m_numerator.to_double() / m_denominator.to_double();
 }
 
+bool BigFraction::is_zero() const
+{
+    return m_numerator.is_zero();
+}
+
 void BigFraction::set_to_0()
 {
     m_numerator.set_to_0();
diff --git a/Libraries/LibCrypto/BigFraction/BigFraction.h b/Libraries/LibCrypto/BigFraction/BigFraction.h
index d0cc8a6ad9f..5db6a999ae5 100644
--- a/Libraries/LibCrypto/BigFraction/BigFraction.h
+++ b/Libraries/LibCrypto/BigFraction/BigFraction.h
@@ -44,6 +44,7 @@ public:
     BigFraction invert() const;
     BigFraction sqrt() const;
 
+    bool is_zero() const;
     void set_to_0();
 
     // Return a BigFraction in "scientific notation", as an example with: