diff --git a/lev/06/20.md b/lev/06/20.md
index 23f15215d7..d10a984ed6 100644
--- a/lev/06/20.md
+++ b/lev/06/20.md
@@ -1,3 +1,11 @@
 # when each son is anointed
 
-"when he anoints each son, ordaining them as priests"
\ No newline at end of file
+"when he anoints each son, ordaining them as priests"
+
+# a tenth part of an ephah
+
+One-tenth of an ephah is about 2 liters.
+
+# a tenth
+
+This is one part of ten equal parts.
\ No newline at end of file