1) What should you do first when adding or subtracting fractions? a) make sure the denominators are the same b) make sure the numerators are the same 2) If you need make the denominators equivalent, what do you need to work out? a) the lowest common multiple b) the highest common factor 3) What do you do to the numerators once you have changed the denominators? a) Leave them the same b) Multiply the top by the same number you multiplied the bottom

adding and subtracting fractions review week 2

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