Before we can evaluate a sum or difference involving mixed numbers, the mixed numbers must first be rewritten as fractions.
a bc
a* c+b/c
Simplify
6 35
6* 5+3/5
33/5
1 23
1* 3+2/3
5/3
When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators.
33/5 - 5/3
Since 15 is a least common denominator of 5 and 3 we can multiply both the numerator and denominator of 335 by 3 and 53 by 5 to create a common denominator. We will start with the first fraction.
