diff --git a/ratio_ops/src/ratio.rs b/ratio_ops/src/ratio.rs
index a7f8928..55732be 100644
--- a/ratio_ops/src/ratio.rs
+++ b/ratio_ops/src/ratio.rs
@@ -68,6 +68,32 @@ impl_ratio_method!(Add,add,add_ratio);
 impl_ratio_method!(Sub,sub,sub_ratio);
 impl_ratio_method!(Rem,rem,rem_ratio);
 
+macro_rules! impl_ratio_ord_method {
+	($method:ident, $ratio_method:ident, $output:ty) => {
+		impl<LhsNum,LhsDen> Ratio<LhsNum,LhsDen>{
+			#[inline]
+			pub fn $ratio_method<RhsNum,RhsDen,T>(self,rhs:Ratio<RhsNum,RhsDen>)->$output
+				where
+					LhsNum:core::ops::Mul<RhsDen,Output=T>,
+					LhsDen:core::ops::Mul<RhsNum,Output=T>,
+					T:Ord,
+			{
+				(self.num*rhs.den).$method(&(self.den*rhs.num))
+			}
+		}
+	}
+}
+//PartialEq
+impl_ratio_ord_method!(eq,eq_ratio,bool);
+//PartialOrd
+impl_ratio_ord_method!(lt,lt_ratio,bool);
+impl_ratio_ord_method!(gt,gt_ratio,bool);
+impl_ratio_ord_method!(le,le_ratio,bool);
+impl_ratio_ord_method!(ge,ge_ratio,bool);
+impl_ratio_ord_method!(partial_cmp,partial_cmp_ratio,Option<core::cmp::Ordering>);
+//Ord
+impl_ratio_ord_method!(cmp,cmp_ratio,core::cmp::Ordering);
+
 /* generic rhs mul is not possible!
 impl<Lhs,RhsNum,RhsDen> core::ops::Mul<Ratio<RhsNum,RhsDen>> for Lhs
 	where