diff --git a/projects/plugins/jetpack/changelog/fix-division-by-zero-fatal-story-block b/projects/plugins/jetpack/changelog/fix-division-by-zero-fatal-story-block
new file mode 100644
index 0000000000000..e08c9a67c2920
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/fix-division-by-zero-fatal-story-block
@@ -0,0 +1,4 @@
+Significance: patch
+Type: other
+
+Jetpack plugin - Story Block: Fix 'Division by zero' Fatal
diff --git a/projects/plugins/jetpack/extensions/blocks/story/story.php b/projects/plugins/jetpack/extensions/blocks/story/story.php
index 841a266ea2733..f279d0ee807b3 100644
--- a/projects/plugins/jetpack/extensions/blocks/story/story.php
+++ b/projects/plugins/jetpack/extensions/blocks/story/story.php
@@ -229,7 +229,12 @@ class="wp-block-jetpack-story_image wp-story-image %3$s"
  * @return string The CSS class which will display a cropped image
  */
 function get_image_crop_class( $width, $height ) {
-	$crop_class          = '';
+	$crop_class = '';
+	$width      = (int) $width;
+	$height     = (int) $height;
+	if ( ! $width || ! $height ) {
+		return $crop_class;
+	}
 	$media_aspect_ratio  = $width / $height;
 	$target_aspect_ratio = EMBED_SIZE[0] / EMBED_SIZE[1];
 	if ( $media_aspect_ratio >= $target_aspect_ratio ) {