by Ron Kurtus (revised 18 February 2009)

Take this Mini-Quiz to check your understanding of the lesson material.

1. What happens if the numerators are the same but the denominators are different?

That never can happen

You cannot add the fractions in that form

2. Why it is called cross multiplying?

You cross out equal terms

You multiply across the two fractions, numerator times denominator

It relates to when you multiply two fractions together to get a product

3. What is the lowest common denominator when you add 2/13 + 5/39?

39

26

13

If you got all three correct, you are on your way to becoming a Champion in Arithmetic. If you had problems, you had better look over the material again.

Always walk tall

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