Previous Exercise  Exercise 1 of 5  Next Exercise

What is correct?

For expanding you have to calculate the least common multiple (LCM) of the numerator and denominator.
Expanding increases the value of a fraction.
For expanding, the numerator and denominator are multiplied by the same number. The value of the fraction does not change.


After the questions: Let's continue with Step 4 - Adding and Subtracting.