From 0d81d58370ae7c0788e2ae19691bd07e73a74564 Mon Sep 17 00:00:00 2001
From: rm-dr <96270320+rm-dr@users.noreply.github.com>
Date: Sun, 15 Oct 2023 11:26:54 -0700
Subject: [PATCH] Fixed subtract unit check

---
 src/evaluate/operator.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/evaluate/operator.rs b/src/evaluate/operator.rs
index 22c61cd..cf9bfdf 100644
--- a/src/evaluate/operator.rs
+++ b/src/evaluate/operator.rs
@@ -124,6 +124,8 @@ pub fn eval_operator(context: &mut Context, g: &Expression) -> Result<Option<Exp
 			if let Expression::Quantity(la, a) = a {
 				if let Expression::Quantity(lb, b) = b {
 					if !a.unit.compatible_with(&b.unit) {
+						let a = a.convert_to_base().unit;
+						let b = b.convert_to_base().unit;
 
 						let a_s: String;
 						let b_s: String;