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 25
6* 5+2/5
32/5
4 310
4* 10+3/10
43/10
When adding or subtracting fractions they should have the same denominator. In this exercise, we have two fractions with different denominators.
32/5 + 43/10
Since 10 is a multiple of 5, we can multiply both the numerator and denominator of 325 by 2 to create a common denominator.
