diff --git a/include/cglm/vec2-ext.h b/include/cglm/vec2-ext.h
index ac6615e..0175885 100644
--- a/include/cglm/vec2-ext.h
+++ b/include/cglm/vec2-ext.h
@@ -198,6 +198,18 @@ glm_vec2_abs(vec2 v, vec2 dest) {
   dest[1] = fabsf(v[1]);
 }
 
+/*!
+ * @brief fractional part of each vector item
+ *
+ * @param[in]  v    vector
+ * @param[out] dest destination vector
+ */
+CGLM_INLINE
+void
+glm_vec2_fract(vec2 v, vec2 dest) {
+  dest[0] = fminf(v[0] - floorf(v[0]), 0.999999940395355224609375f);
+  dest[1] = fminf(v[1] - floorf(v[1]), 0.999999940395355224609375f);
+}
 /*!
  * @brief square root of each vector item
  *