diff --git a/src/libraries/System.Private.Xml/src/System/Xml/Schema/FacetChecker.cs b/src/libraries/System.Private.Xml/src/System/Xml/Schema/FacetChecker.cs
index 050a82464d99c..7be724ebc779b 100644
--- a/src/libraries/System.Private.Xml/src/System/Xml/Schema/FacetChecker.cs
+++ b/src/libraries/System.Private.Xml/src/System/Xml/Schema/FacetChecker.cs
@@ -334,6 +334,13 @@ internal void CompileFractionDigitsFacet(XmlSchemaFacet facet)
                 {
                     throw new XmlSchemaException(SR.Sch_FractionDigitsFacetInvalid, SR.Sch_FractionDigitsNotOnDecimal, facet);
                 }
+                if ((_baseFixedFlags & RestrictionFlags.FractionDigits) != 0)
+                {
+                    if (_datatype.Restriction.FractionDigits != _derivedRestriction.FractionDigits)
+                    {
+                        throw new XmlSchemaException(SR.Sch_FacetBaseFixed, facet);
+                    }
+                }
                 if ((_baseFlags & RestrictionFlags.FractionDigits) != 0)
                 {
                     if (_derivedRestriction.FractionDigits > _datatype.Restriction.FractionDigits)
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_Compile.cs b/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_Compile.cs
index aafe321747fb9..83ac7b192991c 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_Compile.cs
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_Compile.cs
@@ -152,6 +152,7 @@ public void TFS_470021()
         }
 
         [Fact]
+        [SkipOnTargetFramework(TargetFrameworkMonikers.NetFramework)]
         public void FractionDigitsMismatch_Throws()
         {
             string schema = @"<?xml version='1.0' encoding='utf-8' ?>
@@ -159,7 +160,7 @@ public void FractionDigitsMismatch_Throws()
            xmlns:xs='http://www.w3.org/2001/XMLSchema'>
     <xs:simpleType name='foo'>
         <xs:restriction base='xs:decimal'>
-            <xs:fractionDigits value='8' fixed='true'/>
+            <xs:fractionDigits value='8'/>
         </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name='bar'>
@@ -178,6 +179,32 @@ public void FractionDigitsMismatch_Throws()
             Assert.DoesNotContain("totalDigits", ex.Message);
         }
 
+        [Fact]
+        [SkipOnTargetFramework(TargetFrameworkMonikers.NetFramework)]
+        public void FractionDigitsFacetBaseFixed_Throws()
+        {
+            string schema = @"<?xml version='1.0' encoding='utf-8' ?>
+<xs:schema elementFormDefault='qualified'
+           xmlns:xs='http://www.w3.org/2001/XMLSchema'>
+    <xs:simpleType name='foo'>
+        <xs:restriction base='xs:decimal'>
+            <xs:fractionDigits value='8' fixed='true'/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:simpleType name='bar'>
+        <xs:restriction base='foo'>
+            <xs:fractionDigits value='7'/>
+        </xs:restriction>
+    </xs:simpleType>
+</xs:schema>
+";
+            XmlSchemaSet ss = new XmlSchemaSet();
+            ss.Add(null, XmlReader.Create(new StringReader(schema)));
+
+            Exception ex = Assert.Throws<XmlSchemaException>(() => ss.Compile());
+            Assert.Contains("fixed", ex.Message);
+        }
+        
         [Fact]
         public void MinLengthLtBaseMinLength_Throws()
         {