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
5 56
5* 6+5/6
35/6
Notice that we can also rewrite integers as improper fractions.
13 = 13/1
When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators.
13/1 - 35/6
Since 6 is a multiple of 1, we can multiply both the numerator and denominator of 131 by 6 to create a common denominator.
