diff --git a/sh/tests/Dockerfile b/sh/tests/Dockerfile
index e6df75101..192dbed0a 100644
--- a/sh/tests/Dockerfile
+++ b/sh/tests/Dockerfile
@@ -1,7 +1,7 @@
 FROM docker.01-edu.org/debian:10.9-slim
 
 RUN apt-get update
-RUN apt-get -y install jq curl tree apt-utils
+RUN apt-get -y install jq curl tree apt-utils bc
 
 WORKDIR /app/assets/superhero
 RUN curl --remote-name --location https://demo.01-edu.org/assets/superhero/all.json
diff --git a/sh/tests/division_test.sh b/sh/tests/division_test.sh
index d6990dbfe..a287f5aca 100755
--- a/sh/tests/division_test.sh
+++ b/sh/tests/division_test.sh
@@ -9,20 +9,18 @@ script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
 
 challenge() {
     # Test if test command was used
-    if grep -q "test" "$script_dirS"/student/division.sh
-    then
+    if grep -q "test" "$script_dirS"/student/division.sh; then
         echo "Error: the test command cannot be used in the student script"
         return
     fi
 
     # Test with one or two arguments
-    if [ $# -eq 1 ]
-    then
-    submitted=$(bash "$script_dirS"/student/division.sh $1)
-    expected=$(bash "$script_dirS"/solutions/division.sh $1)
+    if [ $# -eq 1 ]; then
+        submitted=$(bash "$script_dirS"/student/division.sh $1)
+        expected=$(bash "$script_dirS"/solutions/division.sh $1)
     else
-    submitted=$(bash "$script_dirS"/student/division.sh $1 $2)
-    expected=$(bash "$script_dirS"/solutions/division.sh $1 $2)
+        submitted=$(bash "$script_dirS"/student/division.sh $1 $2)
+        expected=$(bash "$script_dirS"/solutions/division.sh $1 $2)
     fi
     diff <(echo "$submitted") <(echo "$expected")
 }
diff --git a/sh/tests/solutions/division.sh b/sh/tests/solutions/division.sh
index b1523e222..3ec09c94c 100755
--- a/sh/tests/solutions/division.sh
+++ b/sh/tests/solutions/division.sh
@@ -1,24 +1,21 @@
 #!/usr/bin/env bash
 
 # Check if two arguments were provided
-if [ $# -ne 2 ]
-then
+if [ $# -ne 2 ]; then
     echo "Error: two numbers must be provided"
 
 # # Check if the arguments are numeric
-elif ! [[ $1 =~ ^-?[0-9]*\.?[0-9]+$ ]] || ! [[ $2 =~ ^-?[0-9]*\.?[0-9]+$ ]]
-then
+elif ! [[ $1 =~ ^-?[0-9]*\.?[0-9]+$ ]] || ! [[ $2 =~ ^-?[0-9]*\.?[0-9]+$ ]]; then
     echo "Error: both arguments must be numeric"
 
 # Check if the second argument is not 0
-elif [ $(echo "$2 == 0" | bc) -eq 1 ]
-then
+elif [[ $(echo "$2 == 0" | bc) -eq 1 ]]; then
     echo "Error: division by zero is not allowed"
 
 # Divide the first argument by the second using bc
-else 
-result=$(echo "$1 / $2" | bc )
+else
+    result=$(echo "$1 / $2" | bc)
 
-# Output the result
-echo $result
+    # Output the result
+    echo $result
 fi