hi im with laravel 5.1

im trying to fetch data from table. categorys and products

categorys has following coloumns 

cat_name
cat_description
cat_price

products has following coloumns 

product_name
product_description
category   				//stores category id
product_price

in index.blade.php of product page. i want to dispaly content as follows

*product name          product description           category                   price* 

casio watch             an anolog watch               clock                      33$

Flash light             LED Flah light                lights                     42$

1. i want to show to which category each product belongs to in category feild
2. and as for the price,both product and category have price column. i want to display the addition result of the category price and product price. clock (its a category) has price of 24$ and casio watch (its product) 9$ in product listing, it should display 33$, by adding the values.

please help me in doing these. thank you