Equivalent fractions
Equivalent fractions are the fractions that have different numerators and denominators but are equal to the same value.
For example: 4/6 and 8/12 are equivalent fractions, because they both are equal to the 2/3
Here are some games: https://www.mathplayground.com/Triplets/index.html
https://www.ixl.com/math/grade-4/equivalent-fractions-find-the-missing-numerator-or-denominator