diff --git a/calculator/calculator.app.js b/calculator/calculator.app.js
index ebb251a..d619c9c 100644
--- a/calculator/calculator.app.js
+++ b/calculator/calculator.app.js
@@ -583,7 +583,11 @@ function buttonPress(val) {
       break;
     case '=':
       if (prevNumber != null && currNumber != null && operator != null) {
-        prevExpression = "(" + prevExpression + " " + operator + " " + currExpression + ")";
+        let cExpr = currExpression;
+        if (hasPressedEquals && cExpr === "") {
+          cExpr = currNumber.toString();
+        }
+        prevExpression = prevExpression + " " + operator + " " + cExpr;
         results = doMath(prevNumber, currNumber, operator);
         prevNumber = results;
         currExpression = "";