From f853f1f4efc54c6e22056ba8c7abc3f8ad85da50 Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Thu, 8 Jun 2023 19:08:41 +0200
Subject: [PATCH] fix: magnitudes division fixed when units are divided

---
 src/core/include/mp-units/unit.h    | 2 +-
 test/unit_test/static/unit_test.cpp | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/include/mp-units/unit.h b/src/core/include/mp-units/unit.h
index 9996f7e4..12257032 100644
--- a/src/core/include/mp-units/unit.h
+++ b/src/core/include/mp-units/unit.h
@@ -436,7 +436,7 @@ template<Unit Lhs, Unit Rhs>
   else if constexpr (detail::is_specialization_of_scaled_unit<Lhs>)
     return Lhs::mag * (Lhs::reference_unit / rhs);
   else if constexpr (detail::is_specialization_of_scaled_unit<Rhs>)
-    return Rhs::mag * (lhs / Rhs::reference_unit);
+    return mag<1> / Rhs::mag * (lhs / Rhs::reference_unit);
   else
     return detail::expr_divide<derived_unit, struct one, detail::type_list_of_unit_less>(lhs, rhs);
 }
diff --git a/test/unit_test/static/unit_test.cpp b/test/unit_test/static/unit_test.cpp
index 25826862..5a689a97 100644
--- a/test/unit_test/static/unit_test.cpp
+++ b/test/unit_test/static/unit_test.cpp
@@ -457,6 +457,8 @@ static_assert(convertible(si::kilo<metre>, kilometre));
 static_assert(convertible(mag<1000> * metre, si::kilo<metre>));
 static_assert(convertible(mag<1000> * metre, kilometre));
 
+static_assert(mag<60> * metre / second == metre / (mag<ratio{1, 60}> * second));
+
 static_assert(metre != kilometre);
 static_assert(convertible(metre, kilometre));
 static_assert(mag<100> * metre != kilometre);