diff --git a/keras2onnx/_builtin.py b/keras2onnx/_builtin.py
index cf6cb41e..7bd63466 100644
--- a/keras2onnx/_builtin.py
+++ b/keras2onnx/_builtin.py
@@ -778,39 +778,20 @@ def convert_tf_gather_nd(scope, operator, container):
                               operator.outputs[0].full_name,
                               name=operator.full_name)
 
-
-def _convert_tf_compare_equal(scope, operator, container, tf_op_string, onnx_op_string):
-    if operator.target_opset < 7:
-        raise ValueError(tf_op_string + " op is not supported for opset < 7")
-    oopb = OnnxOperatorBuilder(container, scope)
-    if operator.target_opset >= 9:
-        compare_node = oopb.add_node(onnx_op_string,
-                                     operator.input_full_names,
-                                     operator.full_name + '_' + onnx_op_string.lower())
-        oopb.add_node_with_output('Not',
-                                  [compare_node],
-                                  operator.outputs[0].full_name,
-                                  name=operator.full_name)
-    else:
-        compare_input_0 = oopb.add_node('Cast', [operator.inputs[0].full_name],
-                                        operator.full_name + '_input_0_cast', to=oopb.float)
-        compare_input_1 = oopb.add_node('Cast', [operator.inputs[1].full_name],
-                                        operator.full_name + '_input_1_cast', to=oopb.float)
-        less_out = oopb.add_node(onnx_op_string, [compare_input_0, compare_input_1],
-                                 operator.full_name + '_' + onnx_op_string.lower())
-        oopb.add_node_with_output('Not', less_out,
-                                  operator.output_full_names,
-                                  name=operator.full_name + '_not')
-
-
 @converter_func(TYPES.GreaterEqual)
 def convert_tf_greater_equal(scope, operator, container):
-    _convert_tf_compare_equal(scope, operator, container, 'GreaterEqual', 'Less')
+    oopb = OnnxOperatorBuilder(container, scope)
+    oopb.apply_op_with_output('apply_greater_or_equal', operator.input_full_names,
+                              operator.output_full_names,
+                              name=operator.full_name)
 
 
 @converter_func(TYPES.LessEqual)
 def convert_tf_less_equal(scope, operator, container):
-    _convert_tf_compare_equal(scope, operator, container, 'LessEqual', 'Greater')
+    oopb = OnnxOperatorBuilder(container, scope)
+    oopb.apply_op_with_output('apply_less_or_equal', operator.input_full_names,
+                              operator.output_full_names,
+                              name=operator.full_name)
 
 
 @converter_func(TYPES.LogicalAnd)