Mixed numbers can be converted to improper fractions. Improper fractions can be added the same way proper fractions are.
Change them into mixed numbers and add the integers and fractions together ensuring that the fractions have a common denominator.
You need to learn how to convert from improper fractions to mixed fractions and vice versa; however, for most other operations, such as compare, add, subtract, multiply, and divide them, it really doesn't make much difference whether the fraction is proper or improper.
Convert them to improper fractions with common denominators and proceed.
Convert them to improper fractions, find a common denominator and proceed.
To find the sum of two mixed numbers, turn the mixed numbers into improper fractions (multiply the base with the denominator and add the numerator), then add the two fractions. To add the two fractions, find the LCD (lowest common denominator) and add the two numerators, but leave the denominators the same.
Express the mixed fraction as an improper fraction and then proceed as you would with ordinary fractions. If the answer is an improper fraction, then remember to convert to a mixed fraction.
First convert the mixed numbers into "top heavy (or "improper) fractions". Now multiply each of the improper fractions by each other - this makes the denominators the same. Now you can add both the fractions together (and cancel down if necessary).
Proper fractions are less than 1. Improper fractions are greater than 1. For a proper fraction to become an improper fraction, you would have to add a quantity that would make it greater than 1.
Convert them to improper fractions with common denominators and proceed with the adding and subtracting.
A mixed number can be converted into an improper fraction. Mixed numbers as improper fractions can be divided just like any other fraction. To convert a mixed number to an improper fraction multiply the whole number by the denominator and add the original numerator to give the new numerator and put this over the original denominator.