write the comparative form of these adjectives careful expensive fat famous New modern Young cheap delicious rich Hungry difficult beautiful friendly hot wonderful sad

careful - more careful expensive - more expensive fat - fatter famous - more famous New- newer modern - more modern Young - younger cheap - cheapier delicious - more delicious rich- richer Hungry - hungrier difficult - more difficult beautiful - more beautiful friendly - more friendly hot - hotter wonderful - more wonderful sad - sadder/ more sad