Question

At Alice's party she and her 14 friends ate 3/4 of a pizza each.How much pizza waa eaten in total?

Answer 1

Because its her and her 14 friends you are gonna calcute for 15 people. so:
$15 \times \frac{3}{4} = \frac{15 \times 3}{4} = \frac{45}{4} = 11 \frac{1}{4} \: pizzas$

Answer 2

Number of friends = 14

total people = 14 + 1 = 15

each friend ate = 3/4 of a pizza

Total pizza eaten = 15 × 3/4 = 45/4 = 11.25 pizza

Total 11.25pizza were eaten.