diff --git a/vlib/math/stats/stats.v b/vlib/math/stats/stats.v
index 6462a743ced615..98d970d2eb5250 100644
--- a/vlib/math/stats/stats.v
+++ b/vlib/math/stats/stats.v
@@ -67,14 +67,14 @@ pub fn harmonic_mean[T](data []T) T {
 		for v in data {
 			sum += f64(1.0) / v
 		}
-		return f64(data.len / sum)
+		return f64(f64(data.len) / sum)
 	} $else {
 		// use f32 for f32/int/...
 		mut sum := f32(0)
 		for v in data {
 			sum += f32(1.0) / f32(v)
 		}
-		return T(data.len / sum)
+		return T(f32(data.len) / sum)
 	}
 }
 
diff --git a/vlib/v/gen/c/infix.v b/vlib/v/gen/c/infix.v
index 36c447abc8dc64..93a5f8dc52c17a 100644
--- a/vlib/v/gen/c/infix.v
+++ b/vlib/v/gen/c/infix.v
@@ -1189,8 +1189,8 @@ fn (mut g Gen) gen_plain_infix_expr(node ast.InfixExpr) {
 		|| g.file.is_translated)
 	if needs_cast {
 		typ_str := if node.left_ct_expr {
-			g.styp(g.type_resolver.get_type_or_default(node.left, node.promoted_type))
-		} else if node.right_ct_expr {
+			g.styp(g.type_resolver.get_type_or_default(node.left, node.left_type))
+		} else if node.left !in [ast.Ident, ast.CastExpr] && node.right_ct_expr {
 			g.styp(g.type_resolver.get_type_or_default(node.right, node.promoted_type))
 		} else {
 			g.styp(node.promoted_type)