Which equation shows that multiplying by a reciprocal is the same as dividing by a number?

Answer 1

The equation that shows that multiplying by a reciprocal is the same as dividing by a number is:

a/b * b/a = 1

In this equation, "a/b" represents a fraction and "b/a" is its reciprocal. When these two fractions are multiplied, they equal to 1, which signifies that the result of multiplying by a reciprocal is equivalent to dividing by a number.