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
12 12
12* 2+1/2
25/2
6 58
6* 8+5/8
53/8
When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators.
25/2 - 53/8
Since 8 is a multiple of 2, we can multiply both the numerator and denominator of 252 by 4 to create a common denominator.
