Questões de EFAI Matemática

Luan has US$ 90.00 and he is going to share this money among his three children. For that, he is going to share it in a way that each kid gets $\frac{1}{3}$ of this value.

How much each kid will receive?

Fernando divided a circle into $8$ equal parts, as we can see in the image below:

If Fernando wanted to color $\frac{5}{8}$ of the circle, how many parts would he need to color?

Victoria was learning fractions in Math class. In one of the exercises, she wrote two equivalent fractions in her notebook, but accidentally she erased the numerator for one of them:

Which option correctly represents the number erased in the fraction above?

For a birthday party, the balloons below were inflated.

Available at: https://www.shutterstock.com/pt/image-vector/balloon-cartoon-style-bunch-balloons-birthday-1949947867. Accessed 16 Dec. 2022.

At the end of the party, the birthday boy exploded $\frac{1}{2}$ of the balloons.

How many balloons exploded?

Otávio loves to eat pizza with his family. They always order an eight-piece pizza, which has all the pieces the same size. After dinner, the pizza was as shown in the image below:

What fraction represents the pieces of pizza that have already been eaten by the family?

Giulia drew a rectangle, separated it into four equal parts and painted only one of them, as shown in the following image:

What fraction represents the painted part of the rectangle?