Answer:
sorry can you write it down and take a pic of it
please that is the only way i can answer it
Step-by-step explanation:
A common denominator is when 2 fractions have the same denominator and a common multiple is when two multiples have at least 1 number alike. They are alike because they need to have a number in common and they are different because a common denominator has to do with fractions and a common multiple has to do with multiples.
Well for question a.) the answer is 3.5 we find this by taking 6-2.5=3.5 th rule is to add 3.5