AI Tutor
Imagine you have 14\frac{1}{4} of a chocolate bar, and your friend has 38\frac{3}{8} of the same bar. Who has more?
It is hard to tell right away because the bottom numbers, called denominators, are different sizes.
Can we make the pieces the exact same size without cutting both bars?

Related Denominators

When one bottom number fits neatly into another, we call them related denominators.
Here, 44 is a factor of 88 because 4×2=84 \times 2 = 8, which also means 88 is a multiple of 44.
So how do we turn fourths into eighths with math?

Changing Just One Fraction

To change 14\frac{1}{4} into eighths, multiply both the top and bottom by 22 to keep it equivalent.
1×24×2=28\frac{1 \times 2}{4 \times 2} = \frac{2}{8}