How do you find if fractions are equivalent to eachother

Equivalent fractions are different fractions that name the same number.

to find multiply or divide the numerator and denominator by the same number

A simple way to look at how to check for equivalent fractions is to do what is called "cross-multiply", which means multiple the numerator of one fraction by the denominator of the other fraction. Then do the same thing in reverse. Now compare the two answers to see if they are equal.