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A mixed number is a mixed fraction of the form ab/c where a, b and c are positive integers with b < c.
Such a fraction is equivalent to (ac + b)/c and, since a > 0, then ac + b > c. Thus the numerator of the fraction in this form is greater than the denominator. A fraction in this form is called improper, top-heavy or vulgar.
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How do you subtract fractions with mixed numbers and like denominators?
Convert them to improper fractions and proceed.
How do you do mixed numbers?
turn them into improper fractions
Is there a trick to multiplying mixed numbers?
you have to turn them into improper fractions before you multiply them.
Do you change a mixed number into an improper number while adding and subtracting?
you do what makes sense given the numbers, if the fractions work out beautifully, you can just leave them as mixed numbers, otherwise it's best to keep them as improper fractions
When asked to find the sum of two mixed numbers with different denominators you should before you add?
Convert the fractions into equivalent fractions with the same denominator. In actually adding mixed numbers, it is easier to convert the mixed numbers into improper (top heavy) fractions, do the addition, simplify the resulting fraction and convert any resulting improper fraction back into a mixed number.
