15 friends want to order pizza for dinner. They predict that each person will eat 1/3 of a pizza. How many pizzas should they order? Do divide 3/15

I meant 15/3.

I figured it out anyway.
Thanks

No.

3/15 = 1/5

That doesn't make sense, does it.

Please try again.

is is 15/3 thetefore5 pizzas?

To find out how many pizzas to order, you need to divide the total number of people (15 friends) by the fraction of a pizza each person will eat (1/3).

To divide a fraction, you multiply by its reciprocal. The reciprocal of 1/3 is 3/1, which is just 3.

So, to find the answer, we divide 15 by 1/3:

15 ÷ (1/3) = 15 × (3/1)
= (15 × 3) ÷ 1
= 45 ÷ 1
= 45

They should order 45 pizzas for dinner with 15 friends.