diff --git a/matrix.c b/matrix.c
index 5b6e070..1769f1f 100644
--- a/matrix.c
+++ b/matrix.c
@@ -68,16 +68,44 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
 
 }
 
-Matrix add(const Matrix matrix1, const Matrix matrix2)
-{
+Matrix add(const Matrix matrix1, const Matrix matrix2) {
     Matrix matrix;
-    if(matrix1.cols != matrix2.cols || matrix1.rows != matrix2.rows)
+    if(matrix1.rows != matrix2.rows )
     {
         matrix.buffer=NULL;
         matrix.cols = 0;
         matrix.rows = 0;
         return matrix;
     }
+
+    if (matrix1.cols < matrix2.cols) {
+            matrix.cols = matrix2.cols;
+            matrix.rows = matrix2.rows;
+            matrix.buffer = (MatrixType*)malloc(sizeof(MatrixType) * matrix.rows * matrix.cols);
+            for (int i = 0; i < matrix.rows; i++) {
+                for (int j = 0; j < matrix.cols; j++){
+                    matrix.buffer[i * matrix.cols + j] = matrix2.buffer[i * matrix.cols + j]+matrix1.buffer[i*matrix1.cols];
+
+                }
+
+            }
+
+            return matrix;
+    }
+    if (matrix1.cols > matrix2.cols)
+        {
+            matrix.cols = matrix1.cols;
+            matrix.rows = matrix1.rows;
+            matrix.buffer = (MatrixType*)malloc(sizeof(MatrixType) * matrix.rows * matrix.cols);
+            for (int i = 0; i < matrix.rows; i++) {
+                for (int j = 0; j < matrix.cols; j++){
+                    matrix.buffer[i * matrix.cols + j] = matrix1.buffer[i * matrix.cols + j]+matrix2.buffer[i*matrix2.cols];
+                }
+
+            }
+            return matrix;
+        }
+
     else
     {
 
@@ -86,40 +114,42 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
         matrix.buffer= (MatrixType*) malloc(matrix.rows*matrix.cols * sizeof(MatrixType));
         for (int i = 0; i < matrix1.rows; i++) {
             for (int j = 0; j < matrix1.cols; j++) {
-                (matrix.buffer[i*matrix.cols+j])= (matrix1.buffer[i*matrix.cols+j]) + (matrix2.buffer[i*matrix.cols+j]);
+                (matrix.buffer[i*matrix.cols+j])= (matrix1.buffer[i*matrix.cols+j]) + (matrix2.buffer[i*matrix2.cols+j]);
             }
         }
         return matrix;
     }
 }
 
-Matrix multiply(const Matrix matrix1, const Matrix matrix2)
-{
-    Matrix matrix;
-    if(matrix1.cols == matrix2.rows)
-    {
 
-        matrix.cols = matrix2.cols;
-        matrix.rows = matrix1.rows;
-        matrix.buffer= (MatrixType*) malloc(matrix.rows*matrix.cols * sizeof(MatrixType));
-        for(int i = 0; i < matrix1.rows; i++)
-        {
-            for(int j = 0; j < matrix2.cols; j++)
-            {
-               for(int k = 0; k < matrix1.cols; k++)
-               {
-                    matrix.buffer[i*matrix.cols+j] = matrix1.buffer[i*matrix.cols+j] * matrix2.buffer[k*matrix.cols+k];
-               }
-            }
-        }
-        return matrix;
-    }
-    else
+    Matrix multiply(const Matrix matrix1, const Matrix matrix2)
     {
-        matrix.buffer=NULL;
-        matrix.cols = 0;
-        matrix.rows = 0;
-        return matrix;
+        Matrix matrix;
+        if(matrix1.cols == matrix2.rows)
+        {
+
+            matrix.cols = matrix2.cols;
+            matrix.rows = matrix1.rows;
+            matrix.buffer= (MatrixType*) malloc(matrix.rows*matrix.cols * sizeof(MatrixType));
+            for(int i = 0; i < matrix1.rows; i++)
+            {
+                for(int j = 0; j < matrix2.cols; j++)
+                {
+                    for(int k = 0; k < matrix1.cols; k++)
+                    {
+                        matrix.buffer[i*matrix.cols+j] = matrix1.buffer[i*matrix.cols+j] * matrix2.buffer[k*matrix.cols+k];
+                    }
+                }
+            }
+            return matrix;
+        }
+        else
+        {
+            matrix.buffer=NULL;
+            matrix.cols = 0;
+            matrix.rows = 0;
+            return matrix;
+        }
+        //Siehe I1-Pr Aufgabe
+
     }
-    //Siehe I1-Pr Aufgabe
-}
\ No newline at end of file