A common denominator is required to perform the operation after converting the mixed number to improper fraction. Subtraction of mixed numbers is very similar to Addition. Solving the fraction parts ¾ + ⅔ = 3*3/4*3 + 2*4/3*4 = 9/12 + 8/12 = 17/12 Simplifying, 17/12 = 1 5/12Īdding the whole number result with mixed number whole number (7+1) 5/12 = 8 5/12 Subtraction of Mixed Numbers Simplify the fraction by reducing, if possibleĪlternatively, we can perform addition on the whole number separately and on fractions separately and then add the whole number result with the whole number of mixed numbers created by simplifying the fraction result.įor example, 2 ¾ + 5 ⅔ Solving the whole number parts = 2 + 5 = 7.Perform addition on numerators of the fractions, keeping the denominator as common. In the case of LCM, multiply the numerator and denominator of all the fractions with a value that makes the denominator equal to LCM.Find a common denominator for the fractions either by multiplying the numerator and denominator of each fraction involved in the operation with the denominator of all the fractions OR finding the LCM of all the denominators of the fractions.After converting the mixed numbers into improper fractions, we have to follow the same steps like addition of fractions.For example, a b/c can be written as ((a*c)+b)/c. In order to perform addition on mixed numbers, they have to be converted into improper fractions.
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