diff --git a/src/frontends/lean/lean_parser.cpp b/src/frontends/lean/lean_parser.cpp
index 0b5fdf2f1..3a59961c6 100644
--- a/src/frontends/lean/lean_parser.cpp
+++ b/src/frontends/lean/lean_parser.cpp
@@ -884,10 +884,14 @@ class parser::imp {
     }
 
     expr parse_decimal() {
-        not_implemented_yet();
+        auto p = pos();
+        expr r = save(mk_real_value(m_scanner.get_num_val()), p);
+        next();
+        return r;
     }
 
     expr parse_string() {
+        // TODO
         not_implemented_yet();
     }
 
diff --git a/tests/lean/arith8.lean b/tests/lean/arith8.lean
new file mode 100644
index 000000000..0accbcfe5
--- /dev/null
+++ b/tests/lean/arith8.lean
@@ -0,0 +1,5 @@
+Eval 10.3
+Eval 0.3
+Eval 0.3 + 0.1
+Eval 0.2 + 0.7
+Eval 1/3 + 0.1
\ No newline at end of file
diff --git a/tests/lean/arith8.lean.expected.out b/tests/lean/arith8.lean.expected.out
new file mode 100644
index 000000000..e69cc588d
--- /dev/null
+++ b/tests/lean/arith8.lean.expected.out
@@ -0,0 +1,7 @@
+  Set: pp::colors
+  Set: pp::unicode
+103/10
+3/10
+2/5
+9/10
+13/30