A cake was cut into 8 equal pieces. If Malia ate 38 of the cake, and Tiana ate 18 of the cake, how many whole pieces of the cake are left?

Answer 1

Hi! I would draw this out if I were you, I feel like it helps a lot to see it!

We know that there were originally 8 pieces in total, so that is going to be our denominator.

First, add together how much was eaten:

1/8 + 3/8 = 4/8

Then, subtract that total from the whole (8/8) to calculate the number of remaining slices.

8/8 - 4/8 = 4/8

4 out of 8 original slices are remaining, so your answer would be 4.

Hope this helps!

Answer 2

Assuming the problem statement is that Malia ate three eighths (3/8) and Tiana ate one eighth (1/8) then the cake eaten so far is (3/8)+(1/8)=(4/8) you can reduce 4/8 to 1/2. This means half the cake has been eaten and half is left. Half of 8 original pieces is 4. Thus 4 pieces are left.

Answer 3

Draw and label a diagram!

(3 / 8) + (1 / 8) = 4 / 8

(8 / 8/ - (4 / 8) = 4 / 8

4 pieces remain.