How can you check if two fractions are equivalent?

Step-by-step explanation:

Say you have these 2 fractions

Cross multiply as following;

If in the end, both numerator and denominator are equal, then the fractions are equivalent.

Examples:

Example 1

Cross multiply

They're equivalent.

Example 2

Cross multiply

They're not equivalent.

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.