For the pizza that needs 1/3 of a block you know that with 1 block you can make 3 pizzas so if each block gives you 3 pizzas and you have 9 blocks then you would show 3 x 9 = 27 so you could make 27 pizzas
for the pizzas that need 1/5 you can make 5 pizzas with 1 block so same thing 5 x 9 = 45 so 45 pizzas
