Update explainers/explainer_router.py

explainers/explainer_router.py

@@ -1,5 +1,3 @@
-# explainer_router.py
-
 from __future__ import annotations
 
 from typing import Optional
@@ -13,6 +11,8 @@ from explainers.explainer_algebra import explain_algebra_question
 def route_explainer(text: str) -> Optional[ExplainerResult]:
     for fn in (
         explain_percent_question,
+        explain_ratio_question,
+        explain_algebra_question,
     ):
         result = fn(text)
         if result is not None and getattr(result, "understood", False):