From 11d739e5231874202e03116f22a61bb74a93ae47 Mon Sep 17 00:00:00 2001
From: laentropia <aadrian887mh@gmail.com>
Date: Mon, 27 Apr 2026 17:48:57 -0600
Subject: [PATCH] addition: reciprocal, abs, is zero and is int

---
 src/lib.rs | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index fecfa75..de7e3af 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -33,24 +33,28 @@ impl Fraction {
         let mut new = Fraction { num, den };
 
         new.reduce();
+        new.correct_sign();
 
         Ok(new)
     }
 
     pub fn reciprocal(&self) -> Result<Self, FractionError> {
-        todo!()
+        Fraction::new(self.den, self.num)
     }
 
     pub fn abs(&self) -> Self {
-        todo!()
+        Fraction {
+            num: self.num.abs(),
+            den: self.den,
+        }
     }
 
     pub fn is_zero(&self) -> bool {
-        todo!()
+        self.num == 0
     }
 
     pub fn is_integer(&self) -> bool {
-        todo!()
+        self.den == 1
     }
 
     fn gcd(a: i64, b: i64) -> i64 {