diff --git a/packages/utils/callingNumberKorean.ts b/packages/utils/callingNumberKorean.ts
index 7f0bf34..0075bf3 100644
--- a/packages/utils/callingNumberKorean.ts
+++ b/packages/utils/callingNumberKorean.ts
@@ -13,7 +13,7 @@ export default class CallingNumberKorean {
         "여섯", "일곱", "여덟", "아홉", "열",
     ]
     static canConvert(num: number): boolean {
-        return num < 100 && num >= 0 && !Number.isInteger(num)
+        return num < 100 && num >= 0 && Number.isInteger(num)
     }
     static convert(num: number): string {
         const firstDigit = num % 10;
diff --git a/packages/utils/saferKorean.ts b/packages/utils/saferKorean.ts
index 9776349..a04415a 100644
--- a/packages/utils/saferKorean.ts
+++ b/packages/utils/saferKorean.ts
@@ -175,8 +175,10 @@ export function saferKorean(input: string): string {
             const hasNoSuffix = suffix == "";
 
             if (hasNoSuffix && dotCount == 0) {
+                // 일반 숫자는 인트로 읽음
                 return IntegerKorean.convertFromString(num) + postfix;
             } else if (hasNoSuffix && dotCount == 1) {
+                // 소수는 . 앞은 인트로, 뒤는 플로트로 읽음
                 const [intPart, floatPart] = num.split(/\./);
                 return (
                     IntegerKorean.convertFromString(intPart)
@@ -184,7 +186,8 @@ export function saferKorean(input: string): string {
                     + FloatKorean.convert(floatPart)
                     + postfix
                 )
-            } else if (suffix == "v") {
+            } else if ((suffix == "v" || postfix.length) && dotCount > 1) {
+                // 버전표기는 버전을 붙여서
                 return (
                     "버전"
                     + FloatKorean.convert(num)
@@ -193,6 +196,8 @@ export function saferKorean(input: string): string {
                     ] ?? "")
                 );
             } else {
+                // 모든 경우에 속하지 않으면 영일이삼사 형태로 읽음
+                // (예: 111.111.111.111 ip address)
                 return FloatKorean.convert(num) + postfix;
             }
         })