the pet shop owner told jean to fill her new fish tank 3/4 full with water. jean filled it 9/12 full. what fraction of the tank does jean still need to fill.

Simplify 9/12.

3/4

To find the fraction of the tank that Jean still needs to fill, we need to subtract the fraction of the tank that Jean has already filled (9/12) from the fraction that the pet shop owner told her to fill (3/4).

Step 1: Convert both fractions to have a common denominator.
- The denominator of 3/4 is 4, so we multiply both the numerator and denominator by 3: (3/4) * (3/3) = 9/12.
Now, we know that the fraction the pet shop owner told Jean to fill is also 9/12.

Step 2: Subtract the fraction Jean has already filled from the fraction she was told to fill.
9/12 - 9/12 = 0/12.

Therefore, Jean has already filled the tank completely, and there is no fraction remaining to be filled.